Seaborn热图减少了细胞大小

问题描述

有什么方法可以改变Seaborn热图的像元大小吗?我发现了这但我无法按预期工作.

Is there any way to change cell size of Seaborn heatmap?I found this but I cannot get it work as expected.

因此，我在y轴标签中有很长的文字.由于所有文本均已被砍掉，因此我希望将热图的单元格尺寸缩小得更小.我不需要那个大矩形. (例如，突出显示.)

So, I have long text in y-axis labels. Since all of the texts are chopped off, I would like to shrink cell size of the heatmap much smaller. I don't need that big rectangle. (Highlighted just for example.)

(我隐藏了标签名称.)

(I hid label names.)

当我通过类似方式更改图形尺寸时，

When I change the figure size by something like,

plt.figure(figsize=(8, 6)) or
figure.set_size_inches(12, 12)

单元格也变大了，因此文本仍然被切掉.

the cell gets bigger as well so the texts remain chopped off.

这是代码.

sns.set(font_scale=1.2)
ax0 = plt.axes()
ax1 = sns.heatmap(hmap, cbar=0, cmap="YlGnBu",linewidths=2, ax=ax0,vmax=3000, vmin=0)
ax1.set_title('test heatmap')

for item in ax1.get_yticklabels():
    item.set_rotation(0)

for item in ax1.get_xticklabels():
    item.set_rotation(0)

figure = plt.gcf()  # get current figure
figure.set_size_inches(12, 12)
plt.savefig('test.png') , dpi=400)

推荐答案

尝试在sns.heatmap调用中使用square=True参数.这会将热图单元约束为正方形的长宽比.

Try using the square=True argument in your sns.heatmap call. This will constrain the heat map cells to a square aspect ratio.

ax1 = sns.heatmap(hmap, cbar=0, cmap="YlGnBu",linewidths=2, ax=ax0,vmax=3000, vmin=0, square=True)

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