|
| 1 | +""" |
| 2 | +=============================== |
| 3 | +Hat Graph with labels |
| 4 | +=============================== |
| 5 | +This example shows a how to create a hat graph and how to annotate with labels. |
| 6 | +""" |
| 7 | +import matplotlib |
| 8 | +import numpy as np |
| 9 | +import matplotlib.pyplot as plt |
| 10 | +# initialise labels and a numpy array make sure you have N labels of N number of values in the array |
| 11 | +labels = ['I', 'II','III','IV','V'] |
| 12 | +playerA = np.array([5, 15, 22, 20, 25]) |
| 13 | +playerB = np.array([25, 32, 34, 30, 27]) |
| 14 | +x = np.arange(len(labels)) |
| 15 | +width = 0.35 |
| 16 | + |
| 17 | +fig, ax = plt.subplots() |
| 18 | +rects1 = ax.bar(x - width/2, np.zeros_like(playerA), width, |
| 19 | + bottom=playerA, label='Player A', fill=False) |
| 20 | +rects2 = ax.bar(x + width/2, playerB - playerA, width, |
| 21 | + bottom=playerA, label='Player B',edgecolor='black') |
| 22 | +#----------------------------------------------------------------------------------------- |
| 23 | +# Add some text for labels, title and custom x-axis tick labels, etc. |
| 24 | +ax.set_ylim(0,60) |
| 25 | +ax.set_ylabel('Score') |
| 26 | +ax.set_title('Scores by number of game and Players') |
| 27 | +ax.set_xticks(x) |
| 28 | +ax.set_xticklabels(labels) |
| 29 | +ax.legend() |
| 30 | +ax.set_xlabel('Games') |
| 31 | +#-------------------------------------------------------------------------------------------- |
| 32 | +def Label(heights,rects): |
| 33 | + """Attach a text label on top of each bar. """ |
| 34 | + i=0 |
| 35 | + for rect in rects: |
| 36 | + height=int(heights[i]) |
| 37 | + i+=1 |
| 38 | + ax.annotate('{}'.format(height), |
| 39 | + xy=(rect.get_x() + rect.get_width() / 2, height), |
| 40 | + xytext=(0, 4), # 4 points vertical offset. |
| 41 | + textcoords="offset points", |
| 42 | + ha='center', va='bottom') |
| 43 | +Label(playerA,rects1) |
| 44 | +Label(playerB,rects2) |
| 45 | +fig.tight_layout() |
| 46 | +plt.show() |
| 47 | +############################################################################# |
| 48 | +# |
| 49 | +# ------------ |
| 50 | +# |
| 51 | +# References |
| 52 | +# """""""""" |
| 53 | +# |
| 54 | +# The use of the following functions, methods and classes is shown |
| 55 | +# in this example: |
| 56 | +matplotlib.axes.Axes.bar |
| 57 | +matplotlib.pyplot.bar |
| 58 | +matplotlib.axes.Axes.annotate |
| 59 | +matplotlib.pyplot.annotate |
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