Using ListCorrelate with Inner
- To: mathgroup at smc.vnet.net
- Subject: [mg87284] Using ListCorrelate with Inner
- From: Art <grenander at gmail.com>
- Date: Sun, 6 Apr 2008 06:45:05 -0400 (EDT)
I have a matrix of filter vectors h which I would like to
ListCorrelate with a column of data vectors d as (pseudocode) r =
Inner[ListCorrelate, h, d, Plus]. I haven't been able to write this in
a neat form with Inner, which I suspect will also be faster than the
below:
{l,m,n,o} = {5,5,8,1000};
h = RandomReal[1., {l,m,n}];
d = RandomReal[1., {m,o}];
r = Total /@ Table[ListCorrelate[h[[i, j]], d[[j]]], {i, l}, {j,m}]
Thanks,
Art