• autotypenumbers
  Parent: layout.polar.angularaxis
  Type: enumerated , one of ( 'convert types' | 'strict' )
  Default: 'convert types'

  Using 'strict' a numeric string in trace data is not converted to a number. Using 'convert types' a numeric string in trace data may be treated as a number during automatic axis `type` detection. Defaults to layout.autotypenumbers.

• categoryarray
  Parent: layout.polar.angularaxis
  Type: array

  Sets the order in which categories on this axis appear. Only has an effect if `categoryorder` is set to 'array'. Used with `categoryorder`.

• categoryorder
  Parent: layout.polar.angularaxis
  Type: enumerated , one of ( 'trace' | 'category ascending' | 'category descending' | 'array' | 'total ascending' | 'total descending' | 'min ascending' | 'min descending' | 'max ascending' | 'max descending' | 'sum ascending' | 'sum descending' | 'mean ascending' | 'mean descending' | 'geometric mean ascending' | 'geometric mean descending' | 'median ascending' | 'median descending' )
  Default: 'trace'

  Specifies the ordering logic for the case of categorical variables. By default, plotly uses 'trace', which specifies the order that is present in the data supplied. Set `categoryorder` to 'category ascending' or 'category descending' if order should be determined by the alphanumerical order of the category names. Set `categoryorder` to 'array' to derive the ordering from the attribute `categoryarray`. If a category is not found in the `categoryarray` array, the sorting behavior for that attribute will be identical to the 'trace' mode. The unspecified categories will follow the categories in `categoryarray`. Set `categoryorder` to 'total ascending' or 'total descending' if order should be determined by the numerical order of the values. Similarly, the order can be determined by the min, max, sum, mean, geometric mean or median of all the values.

• color
  Parent: layout.polar.angularaxis
  Type: color
  Default: '#444'

  Sets default for all colors associated with this axis all at once: line, font, tick, and grid colors. Grid color is lightened by blending this with the plot background Individual pieces can override this.

• direction
  Parent: layout.polar.angularaxis
  Type: enumerated , one of ( 'counterclockwise' | 'clockwise' )
  Default: 'counterclockwise'

  Sets the direction corresponding to positive angles.

• dtick
  Parent: layout.polar.angularaxis
  Type: number or categorical coordinate string

  Sets the step in-between ticks on this axis. Use with `tick0`. Must be a positive number, or special strings available to 'log' and 'date' axes. If the axis `type` is 'log', then ticks are set every 10^(n'dtick) where n is the tick number. For example, to set a tick mark at 1, 10, 100, 1000, ... set dtick to 1. To set tick marks at 1, 100, 10000, ... set dtick to 2. To set tick marks at 1, 5, 25, 125, 625, 3125, ... set dtick to log_10(5), or 0.69897000433. 'log' has several special values; 'L<f>', where `f` is a positive number, gives ticks linearly spaced in value (but not position). For example `tick0` = 0.1, `dtick` = 'L0.5' will put ticks at 0.1, 0.6, 1.1, 1.6 etc. To show powers of 10 plus small digits between, use 'D1' (all digits) or 'D2' (only 2 and 5). `tick0` is ignored for 'D1' and 'D2'. If the axis `type` is 'date', then you must convert the time to milliseconds. For example, to set the interval between ticks to one day, set `dtick` to 86400000.0. 'date' also has special values 'M<n>' gives ticks spaced by a number of months. `n` must be a positive integer. To set ticks on the 15th of every third month, set `tick0` to '2000-01-15' and `dtick` to 'M3'. To set ticks every 4 years, set `dtick` to 'M48'

• exponentformat
  Parent: layout.polar.angularaxis
  Type: enumerated , one of ( 'none' | 'e' | 'E' | 'power' | 'SI' | 'B' )
  Default: 'B'

  Determines a formatting rule for the tick exponents. For example, consider the number 1,000,000,000. If 'none', it appears as 1,000,000,000. If 'e', 1e+9. If 'E', 1E+9. If 'power', 1x10^9 (with 9 in a super script). If 'SI', 1G. If 'B', 1B.

• gridcolor
  Parent: layout.polar.angularaxis
  Type: color
  Default: '#eee'

  Sets the color of the grid lines.

• griddash
  Parent: layout.polar.angularaxis
  Type: string
  Default: 'solid'

  Sets the dash style of lines. Set to a dash type string ('solid', 'dot', 'dash', 'longdash', 'dashdot', or 'longdashdot') or a dash length list in px (eg '5px,10px,2px,2px').

• gridwidth
  Parent: layout.polar.angularaxis
  Type: number greater than or equal to 0
  Default: 1

  Sets the width (in px) of the grid lines.

• hoverformat
  Parent: layout.polar.angularaxis
  Type: string
  Default: ''

  Sets the hover text formatting rule using d3 formatting mini-languages which are very similar to those in Python. For numbers, see: https://github.com/d3/d3-format/tree/v1.4.5#d3-format. And for dates see: https://github.com/d3/d3-time-format/tree/v2.2.3#locale_format. We add two items to d3's date formatter: '%h' for half of the year as a decimal number as well as '%{n}f' for fractional seconds with n digits. For example, '2016-10-13 09:15:23.456' with tickformat '%H~%M~%S.%2f' would display '09~15~23.46'

• labelalias
  Parent: layout.polar.angularaxis
  Type: number or categorical coordinate string

  Replacement text for specific tick or hover labels. For example using {US: 'USA', CA: 'Canada'} changes US to USA and CA to Canada. The labels we would have shown must match the keys exactly, after adding any tickprefix or ticksuffix. For negative numbers the minus sign symbol used (U+2212) is wider than the regular ascii dash. That means you need to use −1 instead of -1. labelalias can be used with any axis type, and both keys (if needed) and values (if desired) can include html-like tags or MathJax.

• layer
  Parent: layout.polar.angularaxis
  Type: enumerated , one of ( 'above traces' | 'below traces' )
  Default: 'above traces'

  Sets the layer on which this axis is displayed. If 'above traces', this axis is displayed above all the subplot's traces If 'below traces', this axis is displayed below all the subplot's traces, but above the grid lines. Useful when used together with scatter-like traces with `cliponaxis` set to 'false' to show markers and/or text nodes above this axis.

• linecolor
  Parent: layout.polar.angularaxis
  Type: color
  Default: '#444'

  Sets the axis line color.

• linewidth
  Parent: layout.polar.angularaxis
  Type: number greater than or equal to 0
  Default: 1

  Sets the width (in px) of the axis line.

• minexponent
  Parent: layout.polar.angularaxis
  Type: number greater than or equal to 0
  Default: 3

  Hide SI prefix for 10^n if |n| is below this number. This only has an effect when `tickformat` is 'SI' or 'B'.

• nticks
  Parent: layout.polar.angularaxis
  Type: integer greater than or equal to 0
  Default: 0

  Specifies the maximum number of ticks for the particular axis. The actual number of ticks will be chosen automatically to be less than or equal to `nticks`. Has an effect only if `tickmode` is set to 'auto'.

• period
  Parent: layout.polar.angularaxis
  Type: number greater than or equal to 0

  Set the angular period. Has an effect only when `angularaxis.type` is 'category'.

• rotation
  Parent: layout.polar.angularaxis
  Type: angle

  Sets that start position (in degrees) of the angular axis By default, polar subplots with `direction` set to 'counterclockwise' get a `rotation` of '0' which corresponds to due East (like what mathematicians prefer). In turn, polar with `direction` set to 'clockwise' get a rotation of '90' which corresponds to due North (like on a compass),

• separatethousands
  Parent: layout.polar.angularaxis
  Type: boolean

  If "true", even 4-digit integers are separated

• showexponent
  Parent: layout.polar.angularaxis
  Type: enumerated , one of ( 'all' | 'first' | 'last' | 'none' )
  Default: 'all'

  If 'all', all exponents are shown besides their significands. If 'first', only the exponent of the first tick is shown. If 'last', only the exponent of the last tick is shown. If 'none', no exponents appear.

• showgrid
  Parent: layout.polar.angularaxis
  Type: boolean
  Default: true

  Determines whether or not grid lines are drawn. If 'true', the grid lines are drawn at every tick mark.

• showline
  Parent: layout.polar.angularaxis
  Type: boolean
  Default: true

  Determines whether or not a line bounding this axis is drawn.

• showticklabels
  Parent: layout.polar.angularaxis
  Type: boolean
  Default: true

  Determines whether or not the tick labels are drawn.

• showtickprefix
  Parent: layout.polar.angularaxis
  Type: enumerated , one of ( 'all' | 'first' | 'last' | 'none' )
  Default: 'all'

  If 'all', all tick labels are displayed with a prefix. If 'first', only the first tick is displayed with a prefix. If 'last', only the last tick is displayed with a suffix. If 'none', tick prefixes are hidden.

• showticksuffix
  Parent: layout.polar.angularaxis
  Type: enumerated , one of ( 'all' | 'first' | 'last' | 'none' )
  Default: 'all'

  Same as `showtickprefix` but for tick suffixes.

• thetaunit
  Parent: layout.polar.angularaxis
  Type: enumerated , one of ( 'radians' | 'degrees' )
  Default: 'degrees'

  Sets the format unit of the formatted 'theta' values. Has an effect only when `angularaxis.type` is 'linear'.

• tick0
  Parent: layout.polar.angularaxis
  Type: number or categorical coordinate string

  Sets the placement of the first tick on this axis. Use with `dtick`. If the axis `type` is 'log', then you must take the log of your starting tick (e.g. to set the starting tick to 100, set the `tick0` to 2) except when `dtick`='L<f>' (see `dtick` for more info). If the axis `type` is 'date', it should be a date string, like date data. If the axis `type` is 'category', it should be a number, using the scale where each category is assigned a serial number from zero in the order it appears.

• tickangle
  Parent: layout.polar.angularaxis
  Type: angle
  Default: 'auto'

  Sets the angle of the tick labels with respect to the horizontal. For example, a `tickangle` of -90 draws the tick labels vertically.

• tickcolor
  Parent: layout.polar.angularaxis
  Type: color
  Default: '#444'

  Sets the tick color.

• tickfont
  Parent: layout.polar.angularaxis
  Type: struct containing one or more of the keys listed below.

  Sets the tick font.

  • color
    Parent: layout.polar.angularaxis.tickfont
    Type: color
  • family
    Parent: layout.polar.angularaxis.tickfont
    Type: string

    HTML font family - the typeface that will be applied by the web browser. The web browser will only be able to apply a font if it is available on the system which it operates. Provide multiple font families, separated by commas, to indicate the preference in which to apply fonts if they aren't available on the system. The Chart Studio Cloud (at https://chart-studio.plotly.com or on-premise) generates images on a server, where only a select number of fonts are installed and supported. These include 'Arial', 'Balto', 'Courier New', 'Droid Sans', 'Droid Serif', 'Droid Sans Mono', 'Gravitas One', 'Old Standard TT', 'Open Sans', 'Overpass', 'PT Sans Narrow', 'Raleway', 'Times New Roman'.

  • lineposition
    Parent: layout.polar.angularaxis.tickfont
    Type: flaglist string. Any combination of 'under', 'over', 'through' joined with a '+' OR 'none'.
    Examples: 'under', 'over', 'under+over', 'under+over+through', 'none'
    Default: 'none'

    Sets the kind of decoration line(s) with text, such as an 'under', 'over' or 'through' as well as combinations e.g. 'under+over', etc.

  • shadow
    Parent: layout.polar.angularaxis.tickfont
    Type: string
    Default: 'none'

    Sets the shape and color of the shadow behind text. 'auto' places minimal shadow and applies contrast text font color. See https://developer.mozilla.org/en-US/docs/Web/CSS/text-shadow for additional options.

  • size
    Parent: layout.polar.angularaxis.tickfont
    Type: number greater than or equal to 1
  • style
    Parent: layout.polar.angularaxis.tickfont
    Type: enumerated , one of ( 'normal' | 'italic' )
    Default: 'normal'

    Sets whether a font should be styled with a normal or italic face from its family.

  • textcase
    Parent: layout.polar.angularaxis.tickfont
    Type: enumerated , one of ( 'normal' | 'word caps' | 'upper' | 'lower' )
    Default: 'normal'

    Sets capitalization of text. It can be used to make text appear in all-uppercase or all-lowercase, or with each word capitalized.

  • variant
    Parent: layout.polar.angularaxis.tickfont
    Type: enumerated , one of ( 'normal' | 'small-caps' | 'all-small-caps' | 'all-petite-caps' | 'petite-caps' | 'unicase' )
    Default: 'normal'

    Sets the variant of the font.

  • weight
    Parent: layout.polar.angularaxis.tickfont
    Type: integer between or equal to 1 and 1000
    Default: normal

    Sets the weight (or boldness) of the font.

• tickformat
  Parent: layout.polar.angularaxis
  Type: string
  Default: ''

  Sets the tick label formatting rule using d3 formatting mini-languages which are very similar to those in Python. For numbers, see: https://github.com/d3/d3-format/tree/v1.4.5#d3-format. And for dates see: https://github.com/d3/d3-time-format/tree/v2.2.3#locale_format. We add two items to d3's date formatter: '%h' for half of the year as a decimal number as well as '%{n}f' for fractional seconds with n digits. For example, '2016-10-13 09:15:23.456' with tickformat '%H~%M~%S.%2f' would display '09~15~23.46'

• tickformatstops
  Parent: layout.polar.angularaxis
  Type: cell array of struct where each struct has one or more of the keys listed below.
  • dtickrange
    Parent: layout.polar.angularaxis.tickformatstops[]
    Type: cell array

    range ['min', 'max'], where 'min', 'max' - dtick values which describe some zoom level, it is possible to omit 'min' or 'max' value by passing 'null'

  • enabled
    Parent: layout.polar.angularaxis.tickformatstops[]
    Type: boolean
    Default: true

    Determines whether or not this stop is used. If `false`, this stop is ignored even within its `dtickrange`.

  • name
    Parent: layout.polar.angularaxis.tickformatstops[]
    Type: string

    When used in a template, named items are created in the output figure in addition to any items the figure already has in this array. You can modify these items in the output figure by making your own item with `templateitemname` matching this `name` alongside your modifications (including `visible: false` or `enabled: false` to hide it). Has no effect outside of a template.

  • templateitemname
    Parent: layout.polar.angularaxis.tickformatstops[]
    Type: string

    Used to refer to a named item in this array in the template. Named items from the template will be created even without a matching item in the input figure, but you can modify one by making an item with `templateitemname` matching its `name`, alongside your modifications (including `visible: false` or `enabled: false` to hide it). If there is no template or no matching item, this item will be hidden unless you explicitly show it with `visible: true`.

  • value
    Parent: layout.polar.angularaxis.tickformatstops[]
    Type: string
    Default: ''

    string - dtickformat for described zoom level, the same as 'tickformat'

• ticklabelstep
  Parent: layout.polar.angularaxis
  Type: integer greater than or equal to 1
  Default: 1

  Sets the spacing between tick labels as compared to the spacing between ticks. A value of 1 (default) means each tick gets a label. A value of 2 means shows every 2nd label. A larger value n means only every nth tick is labeled. `tick0` determines which labels are shown. Not implemented for axes with `type` 'log' or 'multicategory', or when `tickmode` is 'array'.

• ticklen
  Parent: layout.polar.angularaxis
  Type: number greater than or equal to 0
  Default: 5

  Sets the tick length (in px).

• tickmode
  Parent: layout.polar.angularaxis
  Type: enumerated , one of ( 'auto' | 'linear' | 'array' )

  Sets the tick mode for this axis. If 'auto', the number of ticks is set via `nticks`. If 'linear', the placement of the ticks is determined by a starting position `tick0` and a tick step `dtick` ('linear' is the default value if `tick0` and `dtick` are provided). If 'array', the placement of the ticks is set via `tickvals` and the tick text is `ticktext`. ('array' is the default value if `tickvals` is provided).

• tickprefix
  Parent: layout.polar.angularaxis
  Type: string
  Default: ''

  Sets a tick label prefix.

• ticks
  Parent: layout.polar.angularaxis
  Type: enumerated , one of ( 'outside' | 'inside' | '' )

  Determines whether ticks are drawn or not. If '', this axis' ticks are not drawn. If 'outside' ('inside'), this axis' are drawn outside (inside) the axis lines.

• ticksuffix
  Parent: layout.polar.angularaxis
  Type: string
  Default: ''

  Sets a tick label suffix.

• ticktext
  Parent: layout.polar.angularaxis
  Type: array

  Sets the text displayed at the ticks position via `tickvals`. Only has an effect if `tickmode` is set to 'array'. Used with `tickvals`.

• tickvals
  Parent: layout.polar.angularaxis
  Type: array

  Sets the values at which ticks on this axis appear. Only has an effect if `tickmode` is set to 'array'. Used with `ticktext`.

• tickwidth
  Parent: layout.polar.angularaxis
  Type: number greater than or equal to 0
  Default: 1

  Sets the tick width (in px).

• type
  Parent: layout.polar.angularaxis
  Type: enumerated , one of ( '-' | 'linear' | 'category' )
  Default: '-'

  Sets the angular axis type. If 'linear', set `thetaunit` to determine the unit in which axis value are shown. If 'category, use `period` to set the number of integer coordinates around polar axis.

• uirevision
  Parent: layout.polar.angularaxis
  Type: number or categorical coordinate string

  Controls persistence of user-driven changes in axis `rotation`. Defaults to `polar<N>.uirevision`.

• visible
  Parent: layout.polar.angularaxis
  Type: boolean
  Default: true

  A single toggle to hide the axis while preserving interaction like dragging. Default is true when a cheater plot is present on the axis, otherwise false

Set the background color of the subplot

• column
  Parent: layout.polar.domain
  Type: integer greater than or equal to 0
  Default: 0

  If there is a layout grid, use the domain for this column in the grid for this polar subplot .

• row
  Parent: layout.polar.domain
  Type: integer greater than or equal to 0
  Default: 0

  If there is a layout grid, use the domain for this row in the grid for this polar subplot .

• x
  Parent: layout.polar.domain
  Type: cell array
  Default: [0, 1]

  Sets the horizontal domain of this polar subplot (in plot fraction).

• y
  Parent: layout.polar.domain
  Type: cell array
  Default: [0, 1]

  Sets the vertical domain of this polar subplot (in plot fraction).

Determines if the radial axis grid lines and angular axis line are drawn as 'circular' sectors or as 'linear' (polygon) sectors. Has an effect only when the angular axis has `type` 'category'. Note that `radialaxis.angle` is snapped to the angle of the closest vertex when `gridshape` is 'circular' (so that radial axis scale is the same as the data scale).

Sets the fraction of the radius to cut out of the polar subplot.

• angle
  Parent: layout.polar.radialaxis
  Type: angle

  Sets the angle (in degrees) from which the radial axis is drawn. Note that by default, radial axis line on the theta=0 line corresponds to a line pointing right (like what mathematicians prefer). Defaults to the first `polar.sector` angle.

• autorange
  Parent: layout.polar.radialaxis
  Type: enumerated , one of ( true | false | 'reversed' | 'min reversed' | 'max reversed' | 'min' | 'max' )
  Default: true

  Determines whether or not the range of this axis is computed in relation to the input data. See `rangemode` for more info. If `range` is provided and it has a value for both the lower and upper bound, `autorange` is set to 'false'. Using 'min' applies autorange only to set the minimum. Using 'max' applies autorange only to set the maximum. Using 'min reversed' applies autorange only to set the minimum on a reversed axis. Using 'max reversed' applies autorange only to set the maximum on a reversed axis. Using 'reversed' applies autorange on both ends and reverses the axis direction.

• autorangeoptions
  Parent: layout.polar.radialaxis
  Type: struct containing one or more of the keys listed below.
  • clipmax
    Parent: layout.polar.radialaxis.autorangeoptions
    Type: number or categorical coordinate string

    Clip autorange maximum if it goes beyond this value. Has no effect when `autorangeoptions.maxallowed` is provided.

  • clipmin
    Parent: layout.polar.radialaxis.autorangeoptions
    Type: number or categorical coordinate string

    Clip autorange minimum if it goes beyond this value. Has no effect when `autorangeoptions.minallowed` is provided.

  • include
    Parent: layout.polar.radialaxis.autorangeoptions
    Type: number or categorical coordinate string

    Ensure this value is included in autorange.

  • maxallowed
    Parent: layout.polar.radialaxis.autorangeoptions
    Type: number or categorical coordinate string

    Use this value exactly as autorange maximum.

  • minallowed
    Parent: layout.polar.radialaxis.autorangeoptions
    Type: number or categorical coordinate string

    Use this value exactly as autorange minimum.

• autotickangles
  Parent: layout.polar.radialaxis
  Type: cell array
  Default: [0, 30, 90]

  When `tickangle` is set to 'auto', it will be set to the first angle in this array that is large enough to prevent label overlap.

• autotypenumbers
  Parent: layout.polar.radialaxis
  Type: enumerated , one of ( 'convert types' | 'strict' )
  Default: 'convert types'

  Using 'strict' a numeric string in trace data is not converted to a number. Using 'convert types' a numeric string in trace data may be treated as a number during automatic axis `type` detection. Defaults to layout.autotypenumbers.

• calendar
  Parent: layout.polar.radialaxis
  Type: enumerated , one of ( 'chinese' | 'coptic' | 'discworld' | 'ethiopian' | 'gregorian' | 'hebrew' | 'islamic' | 'jalali' | 'julian' | 'mayan' | 'nanakshahi' | 'nepali' | 'persian' | 'taiwan' | 'thai' | 'ummalqura' )
  Default: 'gregorian'

  Sets the calendar system to use for `range` and `tick0` if this is a date axis. This does not set the calendar for interpreting data on this axis, that's specified in the trace or via the global `layout.calendar`

• categoryarray
  Parent: layout.polar.radialaxis
  Type: array

  Sets the order in which categories on this axis appear. Only has an effect if `categoryorder` is set to 'array'. Used with `categoryorder`.

• categoryorder
  Parent: layout.polar.radialaxis
  Type: enumerated , one of ( 'trace' | 'category ascending' | 'category descending' | 'array' | 'total ascending' | 'total descending' | 'min ascending' | 'min descending' | 'max ascending' | 'max descending' | 'sum ascending' | 'sum descending' | 'mean ascending' | 'mean descending' | 'geometric mean ascending' | 'geometric mean descending' | 'median ascending' | 'median descending' )
  Default: 'trace'

  Specifies the ordering logic for the case of categorical variables. By default, plotly uses 'trace', which specifies the order that is present in the data supplied. Set `categoryorder` to 'category ascending' or 'category descending' if order should be determined by the alphanumerical order of the category names. Set `categoryorder` to 'array' to derive the ordering from the attribute `categoryarray`. If a category is not found in the `categoryarray` array, the sorting behavior for that attribute will be identical to the 'trace' mode. The unspecified categories will follow the categories in `categoryarray`. Set `categoryorder` to 'total ascending' or 'total descending' if order should be determined by the numerical order of the values. Similarly, the order can be determined by the min, max, sum, mean, geometric mean or median of all the values.

• color
  Parent: layout.polar.radialaxis
  Type: color
  Default: '#444'

  Sets default for all colors associated with this axis all at once: line, font, tick, and grid colors. Grid color is lightened by blending this with the plot background Individual pieces can override this.

• dtick
  Parent: layout.polar.radialaxis
  Type: number or categorical coordinate string

  Sets the step in-between ticks on this axis. Use with `tick0`. Must be a positive number, or special strings available to 'log' and 'date' axes. If the axis `type` is 'log', then ticks are set every 10^(n'dtick) where n is the tick number. For example, to set a tick mark at 1, 10, 100, 1000, ... set dtick to 1. To set tick marks at 1, 100, 10000, ... set dtick to 2. To set tick marks at 1, 5, 25, 125, 625, 3125, ... set dtick to log_10(5), or 0.69897000433. 'log' has several special values; 'L<f>', where `f` is a positive number, gives ticks linearly spaced in value (but not position). For example `tick0` = 0.1, `dtick` = 'L0.5' will put ticks at 0.1, 0.6, 1.1, 1.6 etc. To show powers of 10 plus small digits between, use 'D1' (all digits) or 'D2' (only 2 and 5). `tick0` is ignored for 'D1' and 'D2'. If the axis `type` is 'date', then you must convert the time to milliseconds. For example, to set the interval between ticks to one day, set `dtick` to 86400000.0. 'date' also has special values 'M<n>' gives ticks spaced by a number of months. `n` must be a positive integer. To set ticks on the 15th of every third month, set `tick0` to '2000-01-15' and `dtick` to 'M3'. To set ticks every 4 years, set `dtick` to 'M48'

• exponentformat
  Parent: layout.polar.radialaxis
  Type: enumerated , one of ( 'none' | 'e' | 'E' | 'power' | 'SI' | 'B' )
  Default: 'B'

  Determines a formatting rule for the tick exponents. For example, consider the number 1,000,000,000. If 'none', it appears as 1,000,000,000. If 'e', 1e+9. If 'E', 1E+9. If 'power', 1x10^9 (with 9 in a super script). If 'SI', 1G. If 'B', 1B.

• gridcolor
  Parent: layout.polar.radialaxis
  Type: color
  Default: '#eee'

  Sets the color of the grid lines.

• griddash
  Parent: layout.polar.radialaxis
  Type: string
  Default: 'solid'

  Sets the dash style of lines. Set to a dash type string ('solid', 'dot', 'dash', 'longdash', 'dashdot', or 'longdashdot') or a dash length list in px (eg '5px,10px,2px,2px').

• gridwidth
  Parent: layout.polar.radialaxis
  Type: number greater than or equal to 0
  Default: 1

  Sets the width (in px) of the grid lines.

• hoverformat
  Parent: layout.polar.radialaxis
  Type: string
  Default: ''

  Sets the hover text formatting rule using d3 formatting mini-languages which are very similar to those in Python. For numbers, see: https://github.com/d3/d3-format/tree/v1.4.5#d3-format. And for dates see: https://github.com/d3/d3-time-format/tree/v2.2.3#locale_format. We add two items to d3's date formatter: '%h' for half of the year as a decimal number as well as '%{n}f' for fractional seconds with n digits. For example, '2016-10-13 09:15:23.456' with tickformat '%H~%M~%S.%2f' would display '09~15~23.46'

• labelalias
  Parent: layout.polar.radialaxis
  Type: number or categorical coordinate string

  Replacement text for specific tick or hover labels. For example using {US: 'USA', CA: 'Canada'} changes US to USA and CA to Canada. The labels we would have shown must match the keys exactly, after adding any tickprefix or ticksuffix. For negative numbers the minus sign symbol used (U+2212) is wider than the regular ascii dash. That means you need to use −1 instead of -1. labelalias can be used with any axis type, and both keys (if needed) and values (if desired) can include html-like tags or MathJax.

• layer
  Parent: layout.polar.radialaxis
  Type: enumerated , one of ( 'above traces' | 'below traces' )
  Default: 'above traces'

  Sets the layer on which this axis is displayed. If 'above traces', this axis is displayed above all the subplot's traces If 'below traces', this axis is displayed below all the subplot's traces, but above the grid lines. Useful when used together with scatter-like traces with `cliponaxis` set to 'false' to show markers and/or text nodes above this axis.

• linecolor
  Parent: layout.polar.radialaxis
  Type: color
  Default: '#444'

  Sets the axis line color.

• linewidth
  Parent: layout.polar.radialaxis
  Type: number greater than or equal to 0
  Default: 1

  Sets the width (in px) of the axis line.

• maxallowed
  Parent: layout.polar.radialaxis
  Type: number or categorical coordinate string

  Determines the maximum range of this axis.

• minallowed
  Parent: layout.polar.radialaxis
  Type: number or categorical coordinate string

  Determines the minimum range of this axis.

• minexponent
  Parent: layout.polar.radialaxis
  Type: number greater than or equal to 0
  Default: 3

  Hide SI prefix for 10^n if |n| is below this number. This only has an effect when `tickformat` is 'SI' or 'B'.

• nticks
  Parent: layout.polar.radialaxis
  Type: integer greater than or equal to 0
  Default: 0

  Specifies the maximum number of ticks for the particular axis. The actual number of ticks will be chosen automatically to be less than or equal to `nticks`. Has an effect only if `tickmode` is set to 'auto'.

• range
  Parent: layout.polar.radialaxis
  Type: cell array

  Sets the range of this axis. If the axis `type` is 'log', then you must take the log of your desired range (e.g. to set the range from 1 to 100, set the range from 0 to 2). If the axis `type` is 'date', it should be date strings, like date data, though Date objects and unix milliseconds will be accepted and converted to strings. If the axis `type` is 'category', it should be numbers, using the scale where each category is assigned a serial number from zero in the order it appears. Leaving either or both elements `null` impacts the default `autorange`.

• rangemode
  Parent: layout.polar.radialaxis
  Type: enumerated , one of ( 'tozero' | 'nonnegative' | 'normal' )
  Default: 'tozero'

  If 'tozero'`, the range extends to 0, regardless of the input data If 'nonnegative', the range is non-negative, regardless of the input data. If 'normal', the range is computed in relation to the extrema of the input data (same behavior as for cartesian axes).

• separatethousands
  Parent: layout.polar.radialaxis
  Type: boolean

  If "true", even 4-digit integers are separated

• showexponent
  Parent: layout.polar.radialaxis
  Type: enumerated , one of ( 'all' | 'first' | 'last' | 'none' )
  Default: 'all'

  If 'all', all exponents are shown besides their significands. If 'first', only the exponent of the first tick is shown. If 'last', only the exponent of the last tick is shown. If 'none', no exponents appear.

• showgrid
  Parent: layout.polar.radialaxis
  Type: boolean
  Default: true

  Determines whether or not grid lines are drawn. If 'true', the grid lines are drawn at every tick mark.

• showline
  Parent: layout.polar.radialaxis
  Type: boolean
  Default: true

  Determines whether or not a line bounding this axis is drawn.

• showticklabels
  Parent: layout.polar.radialaxis
  Type: boolean
  Default: true

  Determines whether or not the tick labels are drawn.

• showtickprefix
  Parent: layout.polar.radialaxis
  Type: enumerated , one of ( 'all' | 'first' | 'last' | 'none' )
  Default: 'all'

  If 'all', all tick labels are displayed with a prefix. If 'first', only the first tick is displayed with a prefix. If 'last', only the last tick is displayed with a suffix. If 'none', tick prefixes are hidden.

• showticksuffix
  Parent: layout.polar.radialaxis
  Type: enumerated , one of ( 'all' | 'first' | 'last' | 'none' )
  Default: 'all'

  Same as `showtickprefix` but for tick suffixes.

• side
  Parent: layout.polar.radialaxis
  Type: enumerated , one of ( 'clockwise' | 'counterclockwise' )
  Default: 'clockwise'

  Determines on which side of radial axis line the tick and tick labels appear.

• tick0
  Parent: layout.polar.radialaxis
  Type: number or categorical coordinate string

  Sets the placement of the first tick on this axis. Use with `dtick`. If the axis `type` is 'log', then you must take the log of your starting tick (e.g. to set the starting tick to 100, set the `tick0` to 2) except when `dtick`='L<f>' (see `dtick` for more info). If the axis `type` is 'date', it should be a date string, like date data. If the axis `type` is 'category', it should be a number, using the scale where each category is assigned a serial number from zero in the order it appears.

• tickangle
  Parent: layout.polar.radialaxis
  Type: angle
  Default: 'auto'

  Sets the angle of the tick labels with respect to the horizontal. For example, a `tickangle` of -90 draws the tick labels vertically.

• tickcolor
  Parent: layout.polar.radialaxis
  Type: color
  Default: '#444'

  Sets the tick color.

• tickfont
  Parent: layout.polar.radialaxis
  Type: struct containing one or more of the keys listed below.

  Sets the tick font.

  • color
    Parent: layout.polar.radialaxis.tickfont
    Type: color
  • family
    Parent: layout.polar.radialaxis.tickfont
    Type: string

    HTML font family - the typeface that will be applied by the web browser. The web browser will only be able to apply a font if it is available on the system which it operates. Provide multiple font families, separated by commas, to indicate the preference in which to apply fonts if they aren't available on the system. The Chart Studio Cloud (at https://chart-studio.plotly.com or on-premise) generates images on a server, where only a select number of fonts are installed and supported. These include 'Arial', 'Balto', 'Courier New', 'Droid Sans', 'Droid Serif', 'Droid Sans Mono', 'Gravitas One', 'Old Standard TT', 'Open Sans', 'Overpass', 'PT Sans Narrow', 'Raleway', 'Times New Roman'.

  • lineposition
    Parent: layout.polar.radialaxis.tickfont
    Type: flaglist string. Any combination of 'under', 'over', 'through' joined with a '+' OR 'none'.
    Examples: 'under', 'over', 'under+over', 'under+over+through', 'none'
    Default: 'none'

    Sets the kind of decoration line(s) with text, such as an 'under', 'over' or 'through' as well as combinations e.g. 'under+over', etc.

  • shadow
    Parent: layout.polar.radialaxis.tickfont
    Type: string
    Default: 'none'

    Sets the shape and color of the shadow behind text. 'auto' places minimal shadow and applies contrast text font color. See https://developer.mozilla.org/en-US/docs/Web/CSS/text-shadow for additional options.

  • size
    Parent: layout.polar.radialaxis.tickfont
    Type: number greater than or equal to 1
  • style
    Parent: layout.polar.radialaxis.tickfont
    Type: enumerated , one of ( 'normal' | 'italic' )
    Default: 'normal'

    Sets whether a font should be styled with a normal or italic face from its family.

  • textcase
    Parent: layout.polar.radialaxis.tickfont
    Type: enumerated , one of ( 'normal' | 'word caps' | 'upper' | 'lower' )
    Default: 'normal'

    Sets capitalization of text. It can be used to make text appear in all-uppercase or all-lowercase, or with each word capitalized.

  • variant
    Parent: layout.polar.radialaxis.tickfont
    Type: enumerated , one of ( 'normal' | 'small-caps' | 'all-small-caps' | 'all-petite-caps' | 'petite-caps' | 'unicase' )
    Default: 'normal'

    Sets the variant of the font.

  • weight
    Parent: layout.polar.radialaxis.tickfont
    Type: integer between or equal to 1 and 1000
    Default: normal

    Sets the weight (or boldness) of the font.

• tickformat
  Parent: layout.polar.radialaxis
  Type: string
  Default: ''

  Sets the tick label formatting rule using d3 formatting mini-languages which are very similar to those in Python. For numbers, see: https://github.com/d3/d3-format/tree/v1.4.5#d3-format. And for dates see: https://github.com/d3/d3-time-format/tree/v2.2.3#locale_format. We add two items to d3's date formatter: '%h' for half of the year as a decimal number as well as '%{n}f' for fractional seconds with n digits. For example, '2016-10-13 09:15:23.456' with tickformat '%H~%M~%S.%2f' would display '09~15~23.46'

• tickformatstops
  Parent: layout.polar.radialaxis
  Type: cell array of struct where each struct has one or more of the keys listed below.
  • dtickrange
    Parent: layout.polar.radialaxis.tickformatstops[]
    Type: cell array

    range ['min', 'max'], where 'min', 'max' - dtick values which describe some zoom level, it is possible to omit 'min' or 'max' value by passing 'null'

  • enabled
    Parent: layout.polar.radialaxis.tickformatstops[]
    Type: boolean
    Default: true

    Determines whether or not this stop is used. If `false`, this stop is ignored even within its `dtickrange`.

  • name
    Parent: layout.polar.radialaxis.tickformatstops[]
    Type: string

    When used in a template, named items are created in the output figure in addition to any items the figure already has in this array. You can modify these items in the output figure by making your own item with `templateitemname` matching this `name` alongside your modifications (including `visible: false` or `enabled: false` to hide it). Has no effect outside of a template.

  • templateitemname
    Parent: layout.polar.radialaxis.tickformatstops[]
    Type: string

    Used to refer to a named item in this array in the template. Named items from the template will be created even without a matching item in the input figure, but you can modify one by making an item with `templateitemname` matching its `name`, alongside your modifications (including `visible: false` or `enabled: false` to hide it). If there is no template or no matching item, this item will be hidden unless you explicitly show it with `visible: true`.

  • value
    Parent: layout.polar.radialaxis.tickformatstops[]
    Type: string
    Default: ''

    string - dtickformat for described zoom level, the same as 'tickformat'

• ticklabelstep
  Parent: layout.polar.radialaxis
  Type: integer greater than or equal to 1
  Default: 1

  Sets the spacing between tick labels as compared to the spacing between ticks. A value of 1 (default) means each tick gets a label. A value of 2 means shows every 2nd label. A larger value n means only every nth tick is labeled. `tick0` determines which labels are shown. Not implemented for axes with `type` 'log' or 'multicategory', or when `tickmode` is 'array'.

• ticklen
  Parent: layout.polar.radialaxis
  Type: number greater than or equal to 0
  Default: 5

  Sets the tick length (in px).

• tickmode
  Parent: layout.polar.radialaxis
  Type: enumerated , one of ( 'auto' | 'linear' | 'array' )

  Sets the tick mode for this axis. If 'auto', the number of ticks is set via `nticks`. If 'linear', the placement of the ticks is determined by a starting position `tick0` and a tick step `dtick` ('linear' is the default value if `tick0` and `dtick` are provided). If 'array', the placement of the ticks is set via `tickvals` and the tick text is `ticktext`. ('array' is the default value if `tickvals` is provided).

• tickprefix
  Parent: layout.polar.radialaxis
  Type: string
  Default: ''

  Sets a tick label prefix.

• ticks
  Parent: layout.polar.radialaxis
  Type: enumerated , one of ( 'outside' | 'inside' | '' )

  Determines whether ticks are drawn or not. If '', this axis' ticks are not drawn. If 'outside' ('inside'), this axis' are drawn outside (inside) the axis lines.

• ticksuffix
  Parent: layout.polar.radialaxis
  Type: string
  Default: ''

  Sets a tick label suffix.

• ticktext
  Parent: layout.polar.radialaxis
  Type: array

  Sets the text displayed at the ticks position via `tickvals`. Only has an effect if `tickmode` is set to 'array'. Used with `tickvals`.

• tickvals
  Parent: layout.polar.radialaxis
  Type: array

  Sets the values at which ticks on this axis appear. Only has an effect if `tickmode` is set to 'array'. Used with `ticktext`.

• tickwidth
  Parent: layout.polar.radialaxis
  Type: number greater than or equal to 0
  Default: 1

  Sets the tick width (in px).

• title
  Parent: layout.polar.radialaxis
  Type: struct containing one or more of the keys listed below.
  • font
    Parent: layout.polar.radialaxis.title
    Type: struct containing one or more of the keys listed below.

    Sets this axis' title font. Note that the title's font used to be customized by the now deprecated `titlefont` attribute.

    • color
      Parent: layout.polar.radialaxis.title.font
      Type: color
    • family
      Parent: layout.polar.radialaxis.title.font
      Type: string

      HTML font family - the typeface that will be applied by the web browser. The web browser will only be able to apply a font if it is available on the system which it operates. Provide multiple font families, separated by commas, to indicate the preference in which to apply fonts if they aren't available on the system. The Chart Studio Cloud (at https://chart-studio.plotly.com or on-premise) generates images on a server, where only a select number of fonts are installed and supported. These include 'Arial', 'Balto', 'Courier New', 'Droid Sans', 'Droid Serif', 'Droid Sans Mono', 'Gravitas One', 'Old Standard TT', 'Open Sans', 'Overpass', 'PT Sans Narrow', 'Raleway', 'Times New Roman'.

    • lineposition
      Parent: layout.polar.radialaxis.title.font
      Type: flaglist string. Any combination of 'under', 'over', 'through' joined with a '+' OR 'none'.
      Examples: 'under', 'over', 'under+over', 'under+over+through', 'none'
      Default: 'none'

      Sets the kind of decoration line(s) with text, such as an 'under', 'over' or 'through' as well as combinations e.g. 'under+over', etc.

    • shadow
      Parent: layout.polar.radialaxis.title.font
      Type: string
      Default: 'none'

      Sets the shape and color of the shadow behind text. 'auto' places minimal shadow and applies contrast text font color. See https://developer.mozilla.org/en-US/docs/Web/CSS/text-shadow for additional options.

    • size
      Parent: layout.polar.radialaxis.title.font
      Type: number greater than or equal to 1
    • style
      Parent: layout.polar.radialaxis.title.font
      Type: enumerated , one of ( 'normal' | 'italic' )
      Default: 'normal'

      Sets whether a font should be styled with a normal or italic face from its family.

    • textcase
      Parent: layout.polar.radialaxis.title.font
      Type: enumerated , one of ( 'normal' | 'word caps' | 'upper' | 'lower' )
      Default: 'normal'

      Sets capitalization of text. It can be used to make text appear in all-uppercase or all-lowercase, or with each word capitalized.

    • variant
      Parent: layout.polar.radialaxis.title.font
      Type: enumerated , one of ( 'normal' | 'small-caps' | 'all-small-caps' | 'all-petite-caps' | 'petite-caps' | 'unicase' )
      Default: 'normal'

      Sets the variant of the font.

    • weight
      Parent: layout.polar.radialaxis.title.font
      Type: integer between or equal to 1 and 1000
      Default: normal

      Sets the weight (or boldness) of the font.

  • text
    Parent: layout.polar.radialaxis.title
    Type: string
    Default: ''

    Sets the title of this axis. Note that before the existence of `title.text`, the title's contents used to be defined as the `title` attribute itself. This behavior has been deprecated.

• type
  Parent: layout.polar.radialaxis
  Type: enumerated , one of ( '-' | 'linear' | 'log' | 'date' | 'category' )
  Default: '-'

  Sets the axis type. By default, plotly attempts to determined the axis type by looking into the data of the traces that referenced the axis in question.

• uirevision
  Parent: layout.polar.radialaxis
  Type: number or categorical coordinate string

  Controls persistence of user-driven changes in axis `range`, `autorange`, `angle`, and `title` if in `editable: true` configuration. Defaults to `polar<N>.uirevision`.

• visible
  Parent: layout.polar.radialaxis
  Type: boolean
  Default: true

  A single toggle to hide the axis while preserving interaction like dragging. Default is true when a cheater plot is present on the axis, otherwise false

Sets angular span of this polar subplot with two angles (in degrees). Sector are assumed to be spanned in the counterclockwise direction with '0' corresponding to rightmost limit of the polar subplot.

Controls persistence of user-driven changes in axis attributes, if not overridden in the individual axes. Defaults to `layout.uirevision`.