The idea is to have one line, with the color changing depending on another variable in the dataframe. The first solution below comes close to that by splitting each color into a different line. – Alexis Eggermont

Jun 13, 2016 · I want to show parts of a line chart in different colors depending on the values of a corresponding boolean array (in this case annotation). So far i've tried this: plt.figure(4) plt.title("Signal...

Jul 23, 2015 · Here is an example to do it without matplotlib.collections.LineCollection. The idea is to first identify the cross-over point and then using a plot function via groupby. global ax. color = 'r' if (group['label'] < 0).all() else 'g' lw = 2.0. ax.plot(group.index, group.px_last, …

The example shows two ways to plot a line with the a varying color defined by a third value. The first example defines the color at each (x, y) point. The second example defines the color between pairs of points, so the length of the color value list is one less than the length of the x and y lists.

Dec 1, 2022 · We can change the line color depending on the values of y with the help of the existing functions of python matplotlib and our logic in the code. Sometimes programmers need this technique to visualize better the change in the values of y throughout the graph.

Dec 6, 2024 · Explore various techniques to modify data point colors in Python visualizations using Matplotlib based on variable values.

Mar 6, 2024 · Crafting a multicolored line graph based on a condition can be elegantly achieved using the matplotlib.collections.LineCollection. This allows you to create a collection of lines that can be individually colored.

Use masked arrays to plot a line with different colors by y-value. The use of the following functions, methods, classes and modules is shown in this example:

Dec 7, 2017 · I have a pandas dataframe where there is a column (eg: speed) that I'm trying to plot, and then another column (eg: active) which is, for now, true/false. Depending on the value of active, I'd like to color the line plot.

Oct 15, 2022 · 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: x=x, . y=y, . mode='markers+lines', . marker={'color': colors}, . line={'color': 'gray'} result: