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m.s.mould at durham.ac.uk
m.s.mould at durham.ac.uk
Fri Jan 11 11:09:55 EST 2008
Hi,
I have what I suspect to be a fairly simple problem while using python Numeric.
I am attempting to count the number of times that an element 'b' occurs in
numeric array 'a'. I tried unsuccessfully to find a more efficient function to
do this for me such as that offered when using a list, but couldn't seem to find
anything for Numeric arrays. However, I suspect that my loop is not the most
efficient way to achieve this.
def countel(a, b): #counts the number of times value 'b' is found in array 'a'
i=0
count=0
while (i<len(a)):
j=0
while (j<len(a[0])):
if (a[i][j]==b):
count=count+1
else:
pass
j=j+1
i=i+1
return count
Any help or advice would be greatly appreciated,
Matt
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