Re: [Matplotlib-users] Horizontal bar chart with log x-axis, no filled boxes

[Christophe P. <xo...@th...>]

On Jan 12, 2012, at 7:38 AM, Benjamin Root wrote:
> Does everything work correctly if it is vertical?  In other words, use bar() and set the y-axis to log scale? An example script would be useful.

No, it doesn't appear to work as a vertical bar chart, either.

I've attached a test case below.  The results I get running it with the X-axis as log are:

	http://thebuild.com/matlabtest/matlabtest-log.pdf

Commenting out the call to ax.set_xscale('log') gives me:

	http://thebuild.com/matlabtest/matlabtest.pdf

Thanks!

--

import numpy as np
import matplotlib
from matplotlib.font_manager import FontProperties

import random

matplotlib.use('PDF')

import matplotlib.pyplot as plot

small_font = FontProperties()
small_font.set_size('xx-small')

ind = np.arange(20)

label = [ str(r) for r in ind ]
data1 = [ float(random.random()*100000000) for r in ind ]
data2 = [ float(random.random()*100000000) for r in ind ]

width = 0.25

fig = plot.figure()
ax = fig.add_subplot(111)

ax.set_title('Table Title')
ax.set_xlabel('X Label')

ax.barh(ind, data1, width, linewidth=0, color='blue')
ax.barh(ind, data2, width, left=data1, linewidth=0, color='yellow')
ax.set_yticks(ind + width/2)
ax.set_yticklabels(label, fontproperties=small_font)
ax.set_xscale('log')

plot.savefig('matlabtest-log.pdf')

--
-- Christophe Pettus
   xo...@th...