[Numpy-discussion] output different columns of ndarray in different formats

[Chao YUE]

Dear all,

Just a small question, how can I output different columns of ndarray in
different formats,
the manual says, "A single format (%10.5f), a sequence of formats, or a
multi-format string"
but I use

np.savetxt('new.csv',data,fmt=['%i4','%f6.3'])

or

np.savetxt('new.csv',data,fmt=('%i4','%f6.3'))

give strange results.

In [33]: data.shape
Out[33]: (6506, 2)

I want the first column integer and second column float.

cheers,

Chao


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Chao YUE
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