How to plot heatmap for high-dimensional dataset?

Question

I would greatly appreciate if you could let me know how to plot high-resolution heatmap for a large dataset with approximately 150 features.

My code is as follows:

Answer 1

If I understand your problem correctly, I think all you have to do is increase you figure size:

f, ax = plt.subplots(figsize=(20, 20))

instead of

f, ax = plt.subplots(figsize=(9, 9))