PYTHON

numpy to csv

import numpy as np
x = np.arange(0.0,5.0,1.0)
np.savetxt('test.csv', x, delimiter=',') 

save numpy array to csv

import pandas as pd 
pd.DataFrame(np_array).to_csv("path/to/file.csv")

python how to convert csv to array

import csv

results = []
with open("input.csv") as csvfile:
    reader = csv.reader(csvfile, quoting=csv.QUOTE_NONNUMERIC) # change contents to floats
    for row in reader: # each row is a list
        results.append(row)