This can aid in supplying context and details about the data that is being plotted. Lastly, we use the xlabel, ylabel, and title methods to add labels and a title to the plot. This can help decipher the significance of the colours used in the story. The mapping between the colour values and their associated values is then displayed by adding a colour bar using the color bar function. The c option specifies the list of colours to be used for each point. The scatter function is then used to construct a scatter plot with various colours using the x, y, and c parameters. Then, we use the NumPy rand function to produce some random x and y data and a list of random colours for each point in the scatter plot. We import Matplotlib and NumPy, two required libraries. In this example, we use Matplotlib to make a scatter plot with many colours. Plt.title('Scatter plot with Multiple Colours!') # Create a scatter plot with multiple colors Lastly, we display the plot using plt.show() and add labels and a title using plt.xlabel(), plt.ylabel(), and plt.title(). These lists are then passed to the scatter() method, where the colour for each point is specified by setting c=colors. We supply a colour for each point in the colours list and the coordinates for each point in the x and y lists. In this example, we create a scatter plot with several colours. The cmap argument can map this to a colormap as a single colour, a series of colours, or a series of values. c parameter defines the marker's shade of colour. Syntax import matplotlib.pyplot as pltĭata that will be plotted on the x and y axes are denoted by the letters x and y. For instance, a scatter plot with blue markers would be produced if c='blue' or c=(0.0, 0.0, 1.0, 1.0). The scatter plot's markers will all have the same colour if the c parameter is passed a single-colour string or a tuple of RGBA values. Depending on how the user wishes to relate the colours to the data, it can take various forms. The colour of each marker in a scatter plot is specified by the c parameter of Matplotlib's scatter function. We can learn more about the connections between variables and spot any intriguing trends or patterns by examining the plot that results. Moreover, the user may add labels, captions, and legends to the plot to offer context and details about the data. Use the scatter function in Matplotlib and the c parameter to pass in the x and y data and a list of colours to produce a scatter plot. This way, we can use the plot to visually depict a third variable or category. By giving a list of colours that each plot point should belong to, the user may use Matplotlib to produce a scatter plot with various hues. ![]() Scatter plots and other types of data visualisation can be made using the well-known Python module Matplotlib. The graphic can aid in finding patterns, trends, and outliers in the data. A marker or symbol is placed on the plot at the coordinates corresponding to each data point's values for the two variables, representing that data point. Here, we added the y-axis value of the point as its label for each point on the scatter plot.A scatter plot is a data visualisation that displays the relationship between two variables. Plt.text(xi, yi, yi, va='bottom', ha='center') To label each point on the scatter plot, use the () function for each point in the plot. Example 2 – Label Each Point on the Scatter Plot Here, we used the va parameter to set the vertical alignment of the text to ‘center’ and the ha parameter to set the horizontal alignment to ‘center’ as well. For example, you can adjust the vertical and the horizontal alignment of the text, you can rotate the text, etc. You can customize the way the text label appears by using additional arguments. For example, let’s label the point (2014, 62.33). ![]() In case you only want to label a specific point (or points), use the () function only for those points. Output: Example 1 – Label a point on the scatter plot First, we will create a simple scatter plot. Let’s now look at some examples of using the above syntax. Now to add labels to each point in the scatter plot, use the () function for each point (x, y) and add its appropriate label. # add text, s to a point at (x, y) coordinate in a plot ![]() The following is the syntax – import matplotlib.pyplot as plt The () function is used to add text at the location (x, y) in the plot. You can use the () function to label points in a matplotlib scatter plot. How to annotate points on a scatter plot in matplotlib? In this tutorial, we will look at how to label points on a scatter plot in Matplotlib with the help of some examples.
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