2d numpy array to text file

Question

I have a 3D-array storing temperature data. And me want to put it to text file in one single line. Need to re-write this code in pythonic way.

    for jn in range(X1, X2):
        for jm in range(Y1,Y2):
            fl.write(str((t[jn,jm] - 273.1).astype(int))+" ")
    fl.write("\n")

What does your output look like when you do this?

Matt
– Matt

2013-08-09 06:28:11 +00:00
Commented Aug 9, 2013 at 6:28 — Matt
– Matt, Commented Aug 9, 2013 at 6:28
File has one line like as 23 24 25 ...

Serenity
– Serenity

2013-08-11 01:00:36 +00:00
Commented Aug 11, 2013 at 1:00 — Serenity
– Serenity, Commented Aug 11, 2013 at 1:00

Community · Accepted Answer · 2017-05-23 12:02:26Z

4

Assuming your array to save is t:

t.tofile('yourfile.txt',sep=" ",format="%s")

Also see this question:

How to write a multidimensional array to a text file?

edited May 23, 2017 at 12:02

CommunityBot

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answered Aug 9, 2013 at 10:11

Lee

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Comments

Thomas B. · Accepted Answer · 2013-08-09 06:34:52Z

2

values = ("{0:.0f}".format(t[i,j]-273.1) 
                for i in xrange(X1, X2) 
                for j in xrange(Y1,Y2))
line = " ".join(values)
fl.write(line + "\n")

answered Aug 9, 2013 at 6:34

Thomas B.

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