Can you please see the code below and let me know why the png figure
comes out empty (it only contains the x-axis, does not contain the
scatterplot). The pdf file has no such problems.
I have tried saving another usual line plot in .png format and I had
no problems. Does this have to do with scatter plot and .png format?
Thank you.
The code
import matplotlib.pyplot as plt
import numpy
differences = numpy.random.uniform(-2,2,190)
bin_values = numpy.arange(-2,2.6,0.1)
hist, bins = numpy.histogram(differences, bins = bin_values)
fig1 = plt.figure()
fig1.set_figwidth(6)
fig1.set_figheight(3)
ax1 = fig1.add_axes([0.1, 0.3, 0.8, 0.9])
ax1.patch.set_facecolor('Linen')
for left, hist_val in zip(bins[:-1], hist):
xvec = [left]*hist_val
yvec = 0.05*numpy.arange(hist_val) + 0.1
if len(xvec) > 0:
ax1.scatter(xvec,yvec)
ax1.axvline(1.3, ymax=0.6, color='DarkGreen')
# The frame of the axes is referred to as
# spines in matplotlib
for i in ax1.spines.iteritems():
if i[0] in ['top','right', 'left']:
i[1].set_visible(False)
print i
# Ticks only in bottom
ax1.xaxis.set_ticks_position('bottom')
ax1.yaxis.set_ticks_position('none')
ax1.set_ylim(bottom=0,top=1.5)
fig1.savefig('trial_figure.png', facecolor='Linen')
fig1.savefig('trial_figure.pdf', facecolor='Linen')
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