In the first plot, the default colors are chosen by passing min-max scaled values from the array of category level ints pd.factorize(iris['species'])[0] to the call method of the plt.cm.viridis colormap object. Here a combination of markers and colors from a qualitative colormap in matplotlib:

The easiest way is to map each category to an integer and pass the array of integer category levels to the plt.scatter() color parameter.

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.

Jun 16, 2020 · I would like to create a line plot with the number of sales by month with the following dataframe called consola:

You can pass categorical values (i.e. strings) directly as x- or y-values to many plotting functions: import matplotlib.pyplot as plt data = { 'apple' : 10 , 'orange' : 15 , 'lemon' : 5 , 'lime' : 20 } names = list ( data . keys ()) values = list ( data . values ()) fig , axs = plt . subplots ( 1 , 3 , figsize = ( 9 , 3 ), sharey = True ) axs ...

Aug 7, 2023 · In this blog post, we will delve into how to plot lines with colors through a colormap in Matplotlib. This technique can be particularly useful when you want to visualize different categories or ranges of data with distinct colors.

Plot y versus x as lines and/or markers. Call signatures: The coordinates of the points or line nodes are given by x, y. The optional parameter fmt is a convenient way for defining basic formatting like color, marker and linestyle. It's a shortcut string …

Sep 11, 2024 · This demonstrates how to change line color in Matplotlib for 3D visualizations. Changing Line Color Based on Categorical Data. When working with categorical data, you might want to assign different colors to different categories. Here's an example of how to change line color in Matplotlib based on categorical data:

Jul 6, 2024 · In this article, we have explored how to plot categorical variables with different colors in Python 3 using the Matplotlib library. By representing each level of the categorical variable with a different color, we can create visually appealing and informative plots.

Apr 23, 2025 · plt.plot(students, marks, color = ‘green’, linestyle = ‘solid’, marker = ‘o’, markerfacecolor = ‘red’, markersize = 12): It customizes the line with a green color, solid line style and markers (‘o’) with red fill and a size of 12 for the markers.