How to change line color according my condition?

[sam_wang]

This is my code

fig = go.Figure(data=go.Scatter(
    x=grouped_data.index,
    y=grouped_data['avg_sentiment'],
    mode='lines',
    name='Sentiment',
    line=dict(
    color=['red' if val >= 0 else 'green' for val in grouped_data['avg_sentiment']],
    width=2
    )
))

the range of grouped_data[‘avg_sentiment’]] is between -1 to 1
but have error

Please help me!

[AIMPED]

Hi,

unfortunately, the line_color only accepts a single value.

If you want to have different colors for line segments, you will have to add traces for each segment, here an example:

Change color of continuous line based on value

Hi @yogi_dhiman , I think there is no built in function for this. There are two possible solutions I came up with, the first does not answer your question but could be a option, the second includes some preparation of your data first. The first is coloring the markers instead of the line: import plotly.graph_objects as go import numpy as np # generate data x = np.arange(0, 8*np.pi, 0.1) y = np.sin(x) # cutoff value cutoff = 0 # generate color list colors=['red' if val < cutoff else 'blue' …

[sam_wang]

Thank you!!! I finish