Python, numpy, matrix, functions

gist.py

import time
import numpy as np

ROW = int(1 * 1e5)
COL = int(1 * 1e3)
data = np.random.rand(ROW, COL)
functions = [np.mean, np.median, np.std, np.var, np.sum]

def ze():
    values = []
    for col in range(COL):
        for function in functions:
            values.extend([round(function(data[:, col]),2)])
    return values

def modificado():
    return np.round([function(data, axis=0) for function in functions], 2)

def exectime(fn):
    start_time = time.time()
    fn()
    print("--- %s seconds ---" % (time.time() - start_time))

exectime(ze)
exectime(modificado)