matplotlib example test python (snippet)

Python matplotlib example 'test python'

Modules used in program:

• import matplotlib.pyplot as plt
• import matplotlib
• import numpy as np

python test python

Python matplotlib example: test python

# import packages installed that are necessary for this exercise
import numpy as np
import matplotlib
import matplotlib.pyplot as plt

# set up display of plot in Jupyter Notebook
%matplotlib inline
matplotlib.rcParams['figure.figsize'] = (12,8)

# example from matplotlib website - https://matplotlib.org/gallery/lines_bars_and_markers/bar_stacked.html#sphx-glr-gallery-lines-bars-and-markers-bar-stacked-py
N = 5
menMeans = (20, 35, 30, 35, 27)
womenMeans = (25, 32, 34, 20, 25)
menStd = (2, 3, 4, 1, 2)
womenStd = (3, 5, 2, 3, 3)
ind = np.arange(N)    # the x locations for the groups
width = 0.35       # the width of the bars: can also be len(x) sequence

p1 = plt.bar(ind, menMeans, width, yerr=menStd)
p2 = plt.bar(ind, womenMeans, width,
             bottom=menMeans, yerr=womenStd)

plt.ylabel('Scores')
plt.title('Scores by group and gender')
plt.xticks(ind, ('G1', 'G2', 'G3', 'G4', 'G5'))
plt.yticks(np.arange(0, 81, 10))
plt.legend((p1[0], p2[0]), ('Men', 'Women'))

plt.show()

Python links

• Learn Python: https://pythonbasics.org/
• Python Tutorial: https://pythonprogramminglanguage.com