I've looked though various documentation but can't make head or tail on how to go about the following. In a nutshell, i have a matlab command that I need to convert into perl. I'm attempting to do this via PDL. The matlab command is as follows. 
ns =2;
[U,S,V] = svd(A,0);
#v transposed
Vt = V';
#reconstruct the data using a specified number of the most significant
+ datasets
recA = U(:,1:ns)*S(1:ns,1:ns)*Vt(1:ns,:)

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Now although I have now managed to produce the the matrices in question (using SVD function in PDL) I'm slightly bemused as to how to go about creating the 'RecA' matrix. I've been reading about PDL::slice and have worked out how to extract certain values from a PDL matrix but have to admit I am a bit lost. Any help would be appreciated, as always.

In reply to matlab to perl by Angharad

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