numarray.array can be VERY slow

Edward C. Jones edcjones at comcast.net
Sun Apr 10 16:15:14 EDT 2005


Steven Bethard wrote:

 > As mentioned, this has nothing to do with numarray, and everything to
 > do with your inexplicable use of lists.  Why don't you just write this
 > as:
 >
 > arr = numarray.ones((8, 8, 256, 256), Float64)

The code I posted was simplified from a larger program which I have now 
revised. But I still ask: why did it take 4.3 seconds to run?



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