Matplotlib Scatter Plot Color Legend
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Scatter plots with a legend.
Matplotlib scatter plot color legend. The following also demonstrates how transparency of the markers can be adjusted by giving alpha a value between 0 and 1. To create a scatter plot with a legend one may use a loop and create one scatter plot per item to appear in the legend and set the label accordingly. We can generate a legend of scatter plot using the matplotlib pyplot legend function. Data visualization with matplotlib.
A legend can be placed inside or outside the chart and the position can be moved. The position of a point depends on its two dimensional value where each value is a position on either the horizontal or vertical dimension. How to add a legend for a scatter plot in matplotlib. Plt plot group x group y marker o linestyle markersize 12 label name plt legend you can find more python tutorials here.
Import matplotlib pyplot as plt x 1 2 3 4 y 4 1 3 6 plt scatter x y c coral label class 1 x 5 6 7 8 y 1 3 5 2 plt scatter x y c lightblue label class 2 plt legend plt title nuage de points avec matplotlib plt xlabel x plt ylabel y plt savefig scatterplot 09 png plt show. Legends can be placed in various positions. To create a scatter plot with a legend one may use a loop and create one scatter plot per item to appear in the legend and set the label accordingly. Import matplotlib pyplot as plt groups df groupby z for name group in groups.
Matplotlib scatter plot different colors in legend and plot tag. Matplot has a built in function to create scatterplots called scatter. Scatter plots with a legend. The following also demonstrates how transparency of the markers can be adjusted by giving alpha a value between 0 and 1.
Data visualization with matplotlib. A scatter plot is a type of plot that shows the data as a collection of points. How to create a scatter plot with several colors in matplotlib. First simple example that combine two scatter plots with different colors.
Add a legend to the 2d scatter plot in matplotlib import numpy as np import matplotlib pyplot as plt x 1 2 3 4 5 y1 i 2 for i in x y2 2 i 1 for i in x plt scatter x y1 marker x color r label x 2 plt scatter x y2 marker o color b label 2 x 1 plt legend plt show. In this article we will show you some examples of legends using matplotlib. The legend method adds the legend to the plot. The following code shows how to create a scatterplot using the variable z to color the markers based on category.
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