[Numpy-discussion] array with named columns (or record arrays with homogenous types)

Pierre GM pgmdevlist@gmail....
Mon Sep 22 18:28:50 CDT 2008


On Monday 22 September 2008 19:25:16 Tony S Yu wrote:

>  >>> import numpy as np
>  >>>
>  >>> color = np.array([(1, 2, 3), (4, 5, 6)],
>
> ...                  dtype=[('r', '<f4'), ('g', '<f4'), ('b', '<f4')])
> # get the average (grayscale) of the first row
>
>  >>> color[0].mean()

What about
color.view((float,3))[0].mean() ?



More information about the Numpy-discussion mailing list