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POPlotting a pie-chart in matplotlib at a specific angle with the fracs on the wedges
 

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  1. POPlotting a pie-chart in matplotlib at a specific angle with the fracs on the wedges
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    <p>I am plotting a piechart with matplotlib using the following code:</p> <pre><code>ax = axes([0.1, 0.1, 0.6, 0.6]) labels = 'Twice Daily', 'Daily', '3-4 times per week', 'Once per week','Occasionally' fracs = [20,50,10,10,10] explode=(0, 0, 0, 0,0.1) patches, texts, autotexts = ax.pie(fracs, labels=labels, explode = explode, autopct='%1.1f%%', shadow =True) proptease = fm.FontProperties() proptease.set_size('xx-small') setp(autotexts, fontproperties=proptease) setp(texts, fontproperties=proptease) rcParams['legend.fontsize'] = 7.0 savefig("pie1") </code></pre> <p>This produces the following piechart. <img src="https://i.stack.imgur.com/kWKOL.png" alt="PieChart 1"></p> <p>However, I want to start the pie-chart with the first wedge on top, the only solution I could find for this was using <a href="https://stackoverflow.com/questions/3816809/how-to-plot-a-pie-chart-with-the-first-wedge-on-top-in-python-matplotlib">this code </a></p> <p>However on using this as below,</p> <pre><code>from pylab import * from matplotlib import font_manager as fm from matplotlib.transforms import Affine2D from matplotlib.patches import Circle, Wedge, Polygon import numpy as np fig = plt.figure() ax = fig.add_subplot(111) labels = 'Twice Daily', 'Daily', '3-4 times per week', 'Once per week','Occasionally' fracs = [20,50,10,10,10] wedges, plt_labels = ax.pie(fracs, labels=labels) ax.axis('equal') starting_angle = 90 rotation = Affine2D().rotate(np.radians(starting_angle)) for wedge, label in zip(wedges, plt_labels): label.set_position(rotation.transform(label.get_position())) if label._x &gt; 0: label.set_horizontalalignment('left') else: label.set_horizontalalignment('right') wedge._path = wedge._path.transformed(rotation) plt.savefig("pie2") </code></pre> <p>This produces the following pie chart</p> <p><img src="https://i.stack.imgur.com/RCFwL.png" alt="enter image description here"></p> <p>However, this does not print the fracs on the wedges as in the earlier pie chart. I have tried a few different things, but I am not able to preserve the fracs. How can I start the first wedge at noon and display the fracs on the wedges as well??</p>
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