Can you add a color bar to plotly python with an assigned variable for the colorbar like in matplotlib?

Question

Is it possible to add a color bar to a simple scatter plot? I have my data for the x and y axis, then would like to assign the color bar to an independent variable “z”. I cannot for the life of me figure this out or find any documentation to help me.

https://plot.ly/python/colorscales/ is no help for assigning a variable to the colorbar.

Answer 1

You can use the documentation here to help you.

import plotly.graph_objs as go
import plotly.plotly as py

import numpy as np

trace1 = go.Scatter(
    y = np.random.randn(500),
    mode='markers',
    marker=dict(
        size=16,
        color = np.random.randn(500), #set color equal to a variable
        colorscale='Viridis',
        showscale=True
    )
)
data = [trace1]

py.iplot(data, filename='scatter-plot-with-colorscale')