[Numpy-discussion] Printing formatted numerical values

[Gerrit Holl]

On 15 November 2010 15:32,  <pv+numpy at math.duke.edu> wrote:
> Hi, what is the best way to print (to a file or to stdout) formatted
> numerical values? Analogously to C's printf("%d %g",x,y) etc?

Use the .tofile() method:

numpy.random.random(5).tofile(sys.stdout, ' ', '%s')
0.230466435867 0.609443784908 0.353855676828 0.552641723317 0.186418931597

(works only on "real files", afaik, not on StringIO or similar)

cheers,
Gerrit.

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