The text in this example is placed in theįractional figure coordinate system. In the example below, the xy point is in native coordinates Move the tip and base some percent away from To do so, Matplotlib provides us with the Annotation feature which allows us to plot arrows and text labels on the graphs to give them more meaning. The annotate method allows us to specify two pairs of. The width of the base of the arrow head in points We could do this with the text method, but annotate makes it easier to place text relative to a point. The fraction of the arrow length occupied by the head Annotations and Text with Matplotlib In this tutorial, were going to be talking about how we add text to Matplotlib graphs. Properties in the optional keyword argument arrowprops. Consider something like: import numpy as. transform two points along the line to display coordinates find slope of displayed line set text rotation to match this slope. The function parameters used in the example below are: text : The text of. You can use the following basic syntax to annotate scatter plots in Matplotlib: add my text at (x, y) coordinates (6, 9.5) plt. If you want the annotation relative to the subplot then plotting it using ax.text seems the most convenient way to me. Optionally, you can specify arrow properties which draws an arrowįrom the text to the annotated point by giving a dictionary of arrow You can annotate any point in your chart with text using the annotate() function. You can specify the xypoint and the xytext in different positions. Using multiple coordinate systems and axis types. You must specify an annotation point xy (x, y) to annotate this point. However, the origin is from the (right, top) of the figure or axes,Īnalogous to negative indexing of sequences. Annotating Plots Specifying text points and annotation points. annotate ( 'local max', xy = ( 3, 1 ), xycoords = 'data', xytext = ( 0.8, 0.95 ), textcoords = 'axes fraction', arrowprops = dict ( facecolor = 'black', shrink = 0.05 ), horizontalalignment = 'right', verticalalignment = 'top', )įor physical coordinate systems (points or pixels) the origin is the
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