Re: [Matplotlib-users] pcolor problem

[Eric F. <ef...@ha...>]

On 2013/01/19 3:59 AM, burak nebioğlu wrote:
> Hello everone,
>
> I am trying to use pcolor from pylab but I can't get it work. As you
> know signature of pcolor for Matlab is pcolor(x,y,data) which x and y
> are vectors. When I try pcolor(data)
>
> it works but it is not what I want. Because without x,y vectors placed
> it is not generating correct result. when i put x and y vectors in place
> I get a ValueError: shape mismatch: objects cannot be broadcast to a
> single shape

Right, because your x, y, and data don't have properly matching shapes.

http://matplotlib.org/api/axes_api.html?highlight=pcolor#matplotlib.axes.Axes.pcolor

The various ways to make them match are explained in the link above.

Note also that in most cases, using pcolormesh provides the desired 
result but with a much faster implementation.  Pcolor is slow, and 
should be used only for rather small arrays.

Eric


>
> but in matlab it is working with x , y vectors.
>
> Any idea.
>
> Thanks a lot for your time
>
>
> pcolor(X,Y,reshaped)  ----> reshaped is my data matrix
> show()
>
>
> Burak
>
>
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