# [SciPy-user] Can someone shed light on this simple weave inline test

Michael ODonnell odonnems@yahoo....
Sat Dec 8 22:00:52 CST 2007

```I am trying to do some testing and I can not get the following test to work. The code is compiled and the values returned are:
>>> <weave: compiling>
creating c:\temp\Michael\python25_intermediate\compiler_12e837eb1ea3ab5199fbcc0e83015e3f
0 0 0 0 0 0 0 0 0 0

I am able to return an array using a similar method, but this is not working for some reason.

Is there any documentation that may help me with passing multiple variables and arrays?

Thanks,
Michael

winx = 10
winy = 10
kernel = numpy.random.randint(1,10, (10,10)) #Values between 0 and 10 for an array with 10 x 10 shape
#Now make it floating
#kernel * 1.0
nullValue = -10000
ND=NNW=WNW=WSW=SSW=SSE=ESE=ENE=NNE=Flat=0

code = r"""
#include "Python.h"
//int ND, NNW, WNW, WSW, SSW, SSE, ESE, ENE, NNE, Flat;

//Cycle through kernel and calculate the frequency of each compass direction
//Change row in kernel
for (int k=0; k<winy; k++) {
//Change column in kernel
for (int l=0; l<winx; l++) {
if (kernel(k,l) == nullValue)  //or written as numpy.take(kernel, [0]) == [0]
ND++;  //Null Data so not evaluating; or written as ND++ in C++
else if (kernel(k,l) == 1)
NNW++;
else if (kernel(k,l) == 2)
WNW++;
else if (kernel(k,l) == 3)
WSW++;
else if (kernel(k,l) == 4)
SSW++;
else if (kernel(k,l) == 5)
SSE++;
else if (kernel(k,l) == 6)
ESE++;
else if (kernel(k,l) == 7)
ENE++;
else if (kernel(k,l) == 8)
NNE++;
else if (kernel(k,l) == 9)
Flat++;
}
}
"""
weave.inline(code,['winy', 'winx', 'nullValue', 'kernel', 'ND', 'NNW', 'WNW', 'WSW', 'SSW', 'SSE', 'ESE', 'ENE', 'NNE', 'Flat'], type_converters=converters.blitz, compiler='gcc')

print ND, NNW, WNW, WSW,SSW, SSE, ESE, ENE, NNE, Flat

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