matplotlib subplot without gaps but the last one

Question

I\'m try to figure out how can I achieve the result as reported in the title\'s topic, basically I wish obtain a subplot 1 column 4 row without gaps in the row 1,2,3 and a norma

Answer 1

An alternative to the answer by @GlobalTraveler is to chain two Gridspec definitions. See here for more information about the possibilities offered by GridSpec.

outer_gs = matplotlib.gridspec.GridSpec(2,1, height_ratios=[3,1], hspace=0.2)
inner_gs = matplotlib.gridspec.GridSpecFromSubplotSpec(3,1, subplot_spec=gs0[0], hspace=0)

fig = plt.figure()
ax1 = fig.add_subplot(inner_gs[0])
ax2 = fig.add_subplot(inner_gs[1])
ax3 = fig.add_subplot(inner_gs[2])
ax4 = fig.add_subplot(outer_gs[1])