customizing just one side of tick marks in matplotlib using spines
Solution 1
you could simply use:
ax.tick_params(axis='y', direction='out')
this will orientate the ticks as you want. And:
ax.yaxis.tick_left()
this will not plot the right ticks
Solution 2
You can use:
ax.tick_params(top="off")
ax.tick_params(bottom="off")
ax.tick_params(right="off")
ax.tick_params(left="off")
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Updated on June 21, 2022Comments
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Admin almost 2 years
I have a matplotlib horizontal bar drawn as follows:
import matplotlib.pyplot as plt from numpy import * from scipy import * bars = arange(5) + 0.1 vals = rand(5) print bars, vals plt.figure(figsize=(5,5), dpi=100) spines = ["bottom"] ax = plt.subplot(1, 1, 1) for loc, spine in ax.spines.iteritems(): if loc not in spines: spine.set_color('none') # don't draw ytick marks #ax.yaxis.set_tick_params(size=0) ax.xaxis.set_ticks_position('bottom') plt.barh(bars, vals, align="center") plt.savefig("test.png")
This produces this image:
I wanted to only show the xaxis, which worked using spines, but now it plots these hanging tickmarks for the right-hand yaxis. How can I remove these? id like to keep the ytickmarks on the left hand side of the plot and make them face out (direction opposite to bars). I know that I can remove the ytickmarks altogether by uncommenting the line:
#ax.yaxis.set_tick_params(size=0)
but i want to keep the ytick marks only on the left hand side. thank you.
EDIT: I achieved a solution after some trial and error though i'm sure my solution is probably not the best way to do it, so please let me know what you think still. i found that i can do:
ax.spines["left"].axis.axes.tick_params(direction="outward")
to set the tick mark direction. to get rid of the right y-axis ticks, i use:
ax.yaxis.set_ticks_position("left")