更改直方图matplotlib中的默认x范围 [英] changing default x range in histogram matplotlib

问题描述

我想更改直方图的默认x范围.数据的范围是7到12.但是，默认情况下，直方图从7开始，到13结束.我希望它从6.5开始到12.5结束.但是，刻度线应该从7到12.我该怎么做?

I would like to change the default x range for the histogram plot. The range of the data is from 7 to 12. However, by default the histogram starts right at 7 and ends at 13. I want it to start at 6.5 and end at 12.5. However, the ticks should go from 7 to 12.How do I do it?

import asciitable 
import numpy as np
import matplotlib.pyplot as plt
import matplotlib.mlab as mlab
import pylab
from pylab import xticks

data = asciitable.read(file)
hmag = data['col8']
visits = data['col14']
origin = data['col13']


n, bins, patches = plt.hist(hmag, 30, facecolor='gray', align='mid')
xticks(range(7,13))
pylab.rc("axes", linewidth=8.0)
pylab.rc("lines", markeredgewidth=2.0) 
plt.xlabel('H mag', fontsize=14)
plt.ylabel('# of targets', fontsize=14)
pylab.xticks(fontsize=15)
pylab.yticks(fontsize=15)
plt.grid(True)
plt.savefig('hmag_histogram.eps', facecolor='w', edgecolor='w', format='eps')
plt.show()

推荐答案

plt.hist(hmag, 30, range=[6.5, 12.5], facecolor='gray', align='mid')

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