如何设置热图的X和Y轴范围？

Question

I am trying to set the axes for both x and y but every time I try it, the heatmap shrinks to a corner of the plot. I try

plt.xlim(0, 60)
plt.ylim(0, 30)

I've also tried:

ax.set_ylim(0, 30)
ax.set_xlim(0, 60)

But this does the same thing.

Here's what I have so far to call the heatmap:

pivot = df.pivot_table(index = 'Test X', columns = 'Test Y', values = 'Data')
ax = sns.heatmap(pivot, annot = True, fmt = .2g, cmap = 'Blues_r')

I want the X-axis to go from 0 - 60 and for it to show the range regardless of the data going to 60 or not and the same with y to 30. But this does not work.

Answer 1

By using

df = pd.DataFrame(np.random.random((15,15)))
sns.heatmap(df)
ax=plt.gca()
ax.set_xlim(0, 60)

I was able to get the figure with the required limits

Also, ax=sns.heatmap(df); ax.set_xlim(0, 60) ax=sns.heatmap(df); ax.set_xlim(0, 60) behave in the same way. Perhaps is the way you're calling ax.set_xlim . Hope it helps