Thank you for your solutions. However, with my dataset it did not work out with the following code:
import numpy as np
import matplotlib.pyplot as plt
with open('in.small.txt') as f:
data = list(int(no.rstrip()) for no in f)
mean = np.mean(data)
print 'mean', mean
std = np.std(data)
print 'std', std
#fig = plt.figure(figsize=(8,6), dpi=72, facecolor='w')
fig = plt.figure()
axes = plt.subplot(111)
#axes.axvline(np.mean(data), 0, max(data), linewidth=2, color='red')
axes.axvline(x=mean, linewidth=1.5, color='r')
axes.hist(data, bins=50, normed=True)
#axes.set_ylim(0, 1)
#axes.set_xlim(-3, 3)
axes.spines['right'].set_color('none')
axes.spines['top'].set_color('none')
axes.xaxis.set_ticks_position('bottom')
axes.spines['bottom'].set_position(('data', -0.05))
axes.yaxis.set_ticks_position('left')
axes.spines['left'].set_position(('data',-3.25))
fig.savefig('myhist.png')
Please find attached the histogram. The dataset I am sending with next
email.
Thank you in advance.
On Fri, Mar 9, 2012 at 9:59 AM, Paul Hobson <pmhob...@gmail.com> wrote:
> Check out the axvline method (of pyplot or an axes object). You'll
> only have to specify the x-value, and it'll won't rescale your y-axis.
>
> See my edits below:
>
> On Wed, Mar 7, 2012 at 12:28 AM, Mic <micta...@gmail.com> wrote:
> > Hello,
> > I am able to draw a histogram with the following code:
> >
> > import matplotlib.pyplot as plt
> >
> > hist_data = []
> > median = 249
> >
> > f = plt.figure()
> > h = f.add_subplot(111)
> > h.hist(hist_data, bins=50, normed=True)
>
> h.axvline(x=median, linewidth=1.5, color='b')
>
> > f.savefig('myhist.png')
> >
> > However, I don't know how to draw a line for median at 249 position like
> in
> > attachment.
> >
> > Thank you in advance.
> >
> >
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<<attachment: myhist.png>>
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