Compress numpy arrays efficiently

Question

I tried various methods to do data compression when saving to disk some numpy arrays.

These 1D arrays contain sampled data at a certain sampling rate (c

Answer 1

What I do now:

import gzip
import numpy

f = gzip.GzipFile("my_array.npy.gz", "w")
numpy.save(file=f, arr=my_array)
f.close()