It brings inconvience if the tick label text is too long like overlapping between adjacent label texts.
Matplotlib vertical line label.
Each of these elements has a different purpose as follows.
Should be between 0 and 1 0 being the bottom of the plot 1 the top of the plot.
Import matplotlib pyplot as plt import numpy as np x np linspace 0 2 np pi 1000 y1 np sin x f plt figure ax f add subplot 111 plt plot x y1 b label sine plt axvline x np pi color red plt title.
Plot vertical lines at each x from ymin to ymax.
In this tutorial we re going to cover legends titles and labels within matplotlib.
X position in data coordinates of the vertical line.
Should be between 0 and 1 0 being the bottom of the plot 1 the top of the plot.
X position in data coordinates of the vertical line.
X indexes where to plot the lines.
Should be between 0 and 1 0 being the bottom of the plot 1 the top of the plot.
Import matplotlib pyplot as plt x 1 2 3 y 5 7 4 x2 1 2 3 y2 10 14 12.
Scalar or 1d array like.
Provides positive identification of a particular data element or grouping.
Should be between 0 and 1 0 being the bottom of the plot 1 the top of the plot.
To fully document your matplotlib graph you usually have to resort to labels annotations and legends.
Ymax scalar optional default.
Should be between 0 and 1 0 being the bottom of the plot 1 the top of the plot.
A lot of times graphs can be self explanatory but having a title to the graph labels on the axis and a legend that explains what each line is can be necessary.
The codes to create the above figure is from matplotlib import pyplot as plt from datetime import datetime timedelta values range 10 dates datetime now timedelta days for in range 10 fig ax plt subplots plt plot dates.
Matplotlib pyplot vlines x ymin ymax colors k linestyles solid label data none kwargs source plot vertical lines.
How to plot a simple vertical line on a matplotlib figure.
The purpose is to make it easy for the viewer to know the name or kind of data.
X position in data coordinates of the vertical line.
Should be between 0 and 1 0 being the bottom of the plot 1 the top of the plot.
November 24 2019 updated.
Hlines and vlines to plot horizontal and vertical line in matplotlib.
