Aggregations in R

How to use aggregates in R with Plotly.

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Introduction

Aggregates are a type of transform that can be applied to values in a given expression. Available aggregations are:

Function	Description
`count`	Returns the quantity of items for each group.
`sum`	Returns the summation of all numeric values.
`avg`	Returns the average of all numeric values.
`median`	Returns the median of all numeric values.
`mode`	Returns the mode of all numeric values.
`rms`	Returns the rms of all numeric values.
`stddev`	Returns the standard deviation of all numeric values.
`min`	Returns the minimum numeric value for each group.
`max`	Returns the maximum numeric value for each group.
`first`	Returns the first numeric value for each group.
`last`	Returns the last numeric value for each group.

Basic Example

library(plotly)

fig <- plot_ly(
  type = 'scatter',
  x = diamonds$cut,
  y = diamonds$price,
  mode = 'markers',
  transforms = list(
    list(
      type = 'aggregate',
      groups = diamonds$cut,
      aggregations = list(
        list(
          target = 'y', func = 'sum', enabled = T
        )
      )
    )
  )
)

fig