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hist(..., histtype='step') does not set ylim properly. #2061
Description
Checked with the latest version from master (d5071f4).
import numpy
import pylab
x = numpy.array(
[ 94, 95, 96, 98, 84, 104, 99, 88, 80, 90, 99, 95, 89,
88, 94, 99, 99, 91, 100, 86, 102, 85, 84, 95, 87, 87,
106, 109, 97, 97, 106, 93, 90, 91, 95, 93, 81, 93, 103,
82, 94, 89, 113, 93, 95, 103, 99, 99, 93, 103, 87, 94,
96, 104, 88, 98, 89, 117, 88, 87, 97, 91, 84, 90, 98,
90, 100, 92, 102, 89, 104, 104, 92, 96, 88, 97, 105, 106,
104, 105, 88, 93, 112, 82, 102, 81, 80, 86, 100, 101, 93,
93, 91, 99, 90, 100, 93, 96, 99, 99])
pylab.hist(x, histtype='step')
pylab.savefig('fig.png')
It failed to show the lower y values. If you set ymin=0, you can see it:
pylab.ylim(ymin=0)
pylab.savefig('fig2.png')
Activity
mdboom commentedon May 24, 2013
Marking as 1.3.x blocker -- hopefully the fix is simple an obvious, otherwise it might not make the cutoff, of course.
dhyams commentedon May 24, 2013
I can confirm that if you stick in a relim() call right at the end of Axes.hist(), it fixes this bug:
What I cannot confirm is that this is the best way to fix this bug. I'm not entirely clear why there is funny business going on with flipping autoscaling on and off in the hist() routine. I guess there is some updating of self.dataLim that gets missed out on, because of autoscaling being turned on and off during hist()?
mdboom commentedon May 29, 2013
Fixed by #2082.