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Re: How to shift the columns of a PDL matrix

by lin0 (Curate)
on Jul 03, 2007 at 22:35 UTC ( #624802=note: print w/replies, xml ) Need Help??


in reply to How to shift the columns of a PDL matrix

Hi Anonymous Monk,

you could use something like:

$pdl = append(zeroes(1,$pdl->getdim(1)), $pdl(0:-2,:));

where $pdl is your 8 columns by 120 rows piddle

Note: I am assuming you are using PDL::NiceSlice

Cheers,

lin0

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Re^2: How to shift the columns of a PDL matrix
by Anonymous Monk on Nov 04, 2016 at 09:42 UTC

    since you don't want to grow your matrix, it is even simpler to use rotate to shift your columns and then insert your new data.

    $pdl=$pdl->rotate(1); $pdl(0,).=$new_data # your vector.

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