python - Getting the bottom axes in a matplotlib for labelling -


i'd add labels grid of plots, @ bottom axes. don't created axes, have query them fig.get_axes() (this means example below: can not access value ax). nevertheless of these axes have been created subplots shared x-axis.

as example use simplified example:

# illustration purpose have no  # knowledge how original plot created  import numpy np import pylab plt fig, ax = plt.subplots(2, 3, sharex=true) x = np.arange(0, 5, 0.1) n = 0 in xrange(2):     j in xrange(3):         y = x ** n         ax[i, j].plot(x, y)         n += 1  # real work starts here axes = fig.get_axes() print axes plt.show()

i'd use data retrieved in axes 3 bottom axes , label them. note: number of columns may vary , unknown.

don't permanently flatten array of axes. it's shape tell label. in fact, use ravel instead of flatten view of original ax array instead of making unncessary copy: what difference between flatten , ravel functions in numpy?

import numpy np import pylab plt fig, ax = plt.subplots(2, 3, sharex=true) x = np.arange(0, 5, 0.1) fax = ax.ravel() in xrange(6):     y = x **     fax[i].plot(x, y) in range(ax.shape[1]):     ax[-1, i].set_xlabel("some junk {}".format(i)) plt.show()

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