In matplotlib, what is the difference betweent set_xlim and set_xbound?

Question

From the help:

set_xlim: Set the data limits for the xaxis.

set_xbound: Set the lower and upper numerical bounds of the x-axis.

That is not very clear, so let’s say that I plot something:

import matplotlib.pylab as plt fig, ax = plt.subplots(1, 1) ax.plot(xrange(10), xrange(10)) 

Now, either I do:

ax.set_xlim(2, 7) 

or:

ax.set_xbound(2, 7) 

I do not see the difference. I can dragg the plot, all the line is ploted between 0 and 9.

Answer 1

The bound can changes automatically, if you later plot something that is not within the bound. In contrast, limits are fixed and do not change automatically.

import pylab as p  t = p.arange(0.0, 2.0, 0.01) s = p.sin(2*p.pi*t)  ax=p.subplot(111) ax.plot(t, s, color='r',linewidth=1.0) ax.set_ylim(-1,1) ax.plot(t, s+1, color='g',linewidth=1.0, label="Graph2") p.show()   ax=p.subplot(111) ax.plot(t, s, color='r',linewidth=1.0) ax.set_ybound(-1,1) ax.plot(t, s+1, color='g',linewidth=1.0, label="Graph2") p.show()