Matplotlib x-axis label re-positioning-CodePudding

I am trying to move the x-axis label "number of patients" right below the x-tick value '0' (please refer to the image). Please kindly advise on this matter.

The code I used to create the bar chart is as follows:

n_counts.plot.barh(stacked=True, width=0.7, figsize=(12,8), color=['navy','cornflowerblue']);

plt.draw()

# Get current tick positions and labels
pos, lab = plt.xticks()

# Edit labels
new_label = [int(x)*-1 if int(x)<0 else int(x) for x in pos]

# Set new labels
plt.xticks(pos, new_label)
plt.ylabel('neighbourhood', fontsize=13)
plt.xlabel('number of patients', fontsize=13)
plt.legend(['attended', 'not attended'], title='Attendance')
plt.title('            Attendance Counts in Top 20 Regions', loc='left', fontsize=16);

CodePudding user response：

You need to transform the data coordinate of the x-label (0 in the example) to axes coordinates to place the label:

import matplotlib.pyplot as plt
import matplotlib as mpl

fig, ax = plt.subplots()

ax.set_xlim((-2, 10))
x = 0  # position of xlabel

ax.set_xlabel("xlabel", ha='left', x=ax.transAxes.inverted().transform(ax.transData.transform((x, 0)))[0])

transData transforms data coordinates into display coordinates that are then transformed back into Axes coordinates using the inverse transAxes Axes transformation. See the