Numpy data i/o

• Example of Numpy data i/o

import numpy as np

# load txt
txt = np.loadtxt("./populations.txt")
txt[:10]

# Convert the imported txt to int type and load up to the 3rd index
txt_int = txt.astype(int)
txt_int[:3]

# save txt
np.savetxt('int_data.csv', txt_int, delimiter=",")

 

 

 

 

• numpy object - npy

import numpy as np

np.save("npy_test", arr=txt_int)

# Load up to the 3rd index of the file
npy_array = np.load(file="npy_test.npy")
npy_array[:3]