Plots from Grids in Python
How to upload data to Plotly from Python with the Plotly Grid API.
New to Plotly?
Plotly is a free and open-source graphing library for Python. We recommend you read our Getting Started guide for the latest installation or upgrade instructions, then move on to our Plotly Fundamentals tutorials or dive straight in to some Basic Charts tutorials.
Creating a Plotly Grid¶
You can instantiate a grid with data by either uploading tabular data to Plotly or by creating a Plotly grid
using the API. To upload the grid we will use plotly.plotly.grid_ops.upload()
. It takes the following arguments:
grid
(Grid Object): the actual grid object that you are uploading.filename
(str): name of the grid in your plotly account,world_readable
(bool): ifTrue
, the grid ispublic
and can be viewed by anyone in your files. IfFalse
, it is private and can only be viewed by you.auto_open
(bool): if determines if the grid is opened in the browser or not.
You can run help(py.grid_ops.upload)
for a more detailed description of these and all the arguments.
import chart_studio
import chart_studio.plotly as py
import chart_studio.tools as tls
import plotly.graph_objects as go
from chart_studio.grid_objs import Column, Grid
from datetime import datetime as dt
import numpy as np
from IPython.display import IFrame
column_1 = Column(['a', 'b', 'c'], 'column 1')
column_2 = Column([1, 2, 3], 'column 2') # Tabular data can be numbers, strings, or dates
grid = Grid([column_1, column_2])
url = py.grid_ops.upload(grid,
filename='grid_ex_'+str(dt.now()),
world_readable=True,
auto_open=False)
print(url)
View and Share your Grid¶
You can view your newly created grid at the url
:
IFrame(src= url.rstrip('/') + ".embed", width="100%",height="200px", frameBorder="0")
You are also able to view the grid in your list of files inside your organize folder.
Upload Dataframes to Plotly¶
Along with uploading a grid, you can upload a Dataframe as well as convert it to raw data as a grid:
import chart_studio.plotly as py
import plotly.figure_factory as ff
import pandas as pd
df = pd.read_csv('https://raw.githubusercontent.com/plotly/datasets/master/2014_apple_stock.csv')
df_head = df.head()
table = ff.create_table(df_head)
py.iplot(table, filename='dataframe_ex_preview')
Making Graphs from Grids¶
Plotly graphs are usually described with data embedded in them. For example, here we place x
and y
data directly into our Histogram2dContour
object:
x = np.random.randn(1000)
y = np.random.randn(1000) + 1
data = [
go.Histogram2dContour(
x=x,
y=y
)
]
py.iplot(data, filename='Example 2D Histogram Contour')
We can also create graphs based off of references to columns of grids. Here, we'll upload several column
s to our Plotly account:
column_1 = Column(np.random.randn(1000), 'column 1')
column_2 = Column(np.random.randn(1000)+1, 'column 2')
column_3 = Column(np.random.randn(1000)+2, 'column 3')
column_4 = Column(np.random.randn(1000)+3, 'column 4')
grid = Grid([column_1, column_2, column_3, column_4])
url = py.grid_ops.upload(grid, filename='randn_int_offset_'+str(dt.now()))
print(url)
IFrame(src= url.rstrip('/') + ".embed", width="100%",height="200px", frameBorder="0")
Make Graph from Raw Data¶
Instead of placing data into x
and y
, we'll place our Grid columns into xsrc
and ysrc
:
data = [
go.Histogram2dContour(
xsrc=grid[0],
ysrc=grid[1]
)
]
py.iplot(data, filename='2D Contour from Grid Data')
So, when you view the data, you'll see your original grid, not just the columns that compose this graph:
Attaching Meta Data to Grids¶
In Chart Studio Enterprise, you can upload and assign free-form JSON metadata
to any grid object. This means that you can keep all of your raw data in one place, under one grid.
If you update the original data source, in the workspace or with our API, all of the graphs that are sourced from it will be updated as well. You can make multiple graphs from a single Grid and you can make a graph from multiple grids. You can also add rows and columns to existing grids programatically.
meta = {
"Month": "November",
"Experiment ID": "d3kbd",
"Operator": "James Murphy",
"Initial Conditions": {
"Voltage": 5.5
}
}
grid_url = py.grid_ops.upload(grid, filename='grid_with_metadata_'+str(dt.now()), meta=meta)
print(url)
Reference¶
help(py.grid_ops)