How can I save file by using savetxt in the python?-CodePudding

I have lists of data such as

a = [1,2,3,4,5]
b = [6,7,8,9,0]
c = [0,0,0,0,0]

I want to save this data into a file in a form of

1 6 0

2 7 0

3 8 0

4 9 0

5 0 0

I can do this by using "open". But I want to go with savetxt.

How can I save the data into the above form by using savetxt?

CodePudding user response：

import numpy as np


a = np.array([1, 2, 3, 4, 5])
b = np.array([6, 7, 8, 9, 0])
c = np.array([0, 0, 0, 0, 0])

all_data = np.vstack([a, b, c])

np.savetxt("data.txt", all_data.T, fmt="%d")

all_data stack the arrays rows by rows, so to print the data the way you want it you need to print the transpose, so all_data.T

You also need to format the output, so %d

CodePudding user response：

A.T

import numpy as np

a = [1,2,3,4,5]
b = [6,7,8,9,0]
c = [0,0,0,0,0]

A = np.array([a,b,c])
B = A.T

np.savetxt("./demo1",B,fmt="%d",delimiter=" ")