Saving arrays as columns with np.savetxt

Question

I am trying to do something that is probable very simple. I would like to save three arrays to a file as columns using \'np.savetxt\' When I try this

x = [1,2,3         


        

Answer 1

Use zip:

np.savetxt('myfile2.txt', zip(x,y,z), fmt='%.18g')

For python3 list+zip:

np.savetxt('myfile.txt', list(zip(x,y,z)), fmt='%.18g')

To understand the workaround see here: How can I get the "old" zip() in Python3? and https://github.com/numpy/numpy/issues/5951.