1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
"""
=============
Custom Ticker
=============
The :mod:`matplotlib.ticker` module defines many preset tickers, but was
primarily designed for extensibility, i.e., to support user customized ticking.
In this example, a user defined function is used to format the ticks in
millions of dollars on the y-axis.
"""
import matplotlib.pyplot as plt
def millions(x, pos):
"""The two arguments are the value and tick position."""
return f'${x*1e-6:1.1f}M'
fig, ax = plt.subplots()
# set_major_formatter internally creates a FuncFormatter from the callable.
ax.yaxis.set_major_formatter(millions)
money = [1.5e5, 2.5e6, 5.5e6, 2.0e7]
ax.bar(['Bill', 'Fred', 'Mary', 'Sue'], money)
plt.show()
# %%
#
# .. admonition:: References
#
# The use of the following functions, methods, classes and modules is shown
# in this example:
#
# - `matplotlib.axis.Axis.set_major_formatter`
|
