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November 12, 2015 04:43
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Code snippet to plot lots of pie charts in python
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# -*- coding: utf-8 -*- | |
""" | |
Program to plot many pie charts | |
Created on Tue Nov 10 15:00:39 2015 | |
@author: shaunak | |
""" | |
from pylab import * | |
#read all | |
f1 = open('filenames.txt','r') | |
f2 = open('data.txt','r') | |
files = f1.readlines() | |
data = f2.readlines() | |
#remove trainling returns in text files | |
files = [filec for filec in files if filec != '\n'] | |
data = [datac for datac in data if datac != '\n'] | |
f1.close() | |
f2.close() | |
#how many figures? | |
if len(files) < len(data): | |
print "There are more datapoints then filenames. Please ensure number of file names > number of datapoints." | |
raise ValueError('There are more datapoints then filenames.') | |
num = len(files) | |
for i in range(num): | |
# make a square figure and axes | |
figure(i, figsize=(6,6)) | |
ax = axes([0.1, 0.1, 0.8, 0.8]) | |
# The slices will be ordered and plotted counter-clockwise. | |
#labels = ('\\lambda_1', '\\lambda_2', '\\lambda_3') | |
#fracs = [i1,i2,i3] | |
fracs = [float(j) for j in data[i].split(',')] | |
_,_,autotexts = pie(fracs, explode=None, labels=None, | |
autopct='%1.1f%%', shadow=False, startangle=90) | |
for autotext in autotexts: | |
autotext.set_color('white') | |
autotext.set_fontsize('x-large') | |
autotext.set_fontweight('heavy') | |
#title('Eigen Values', bbox={'facecolor':'0.8', 'pad':5}) | |
savefig(files[i].rstrip('\n')) |
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