Greetings all,
Though a little more code to illustrate what you have tried up to now might be helpful my intuitive feeling is that $b is a row vector and could therefore be addressed as such. No need for splitting and regexp. Im not sure if you are using PDL::Matrix or PDL::MatrixOps but I know there is an issue with element addressing being either (row, column) or (column, row). I would suggest reading up on PDL::Indexing before rolling out a regexp solution for this, slice should suffice.

-InjunJoel
"I do not feel obliged to believe that the same God who endowed us with sense, reason and intellect has intended us to forego their use." -Galileo

In reply to Re: Extracting info from matrix by injunjoel
in thread Extracting info from matrix by Angharad

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