D'oh! Of course, @_! Thank you very much, LanX :-)

An updated getsubset (for the code here):

sub getsubset {
    my ($data,$range) = @_;
    my $cols = @{$$data[0]};
    @$_==$cols or croak "data not rectangular" for @$data;
    $range = rangeparse($range) unless ref $range eq 'ARRAY';
    @$range==4 or croak "bad size of range";
    my @max = (0+@$data,$cols)x2;
    for my $i (0..3) {
        $$range[$i]=$max[$i] if $$range[$i]<0;
        croak "index $i out of range"
            if $$range[$i]<1 || $$range[$i]>$max[$i];
    }
    croak "bad rows $$range[0]-$$range[2]" if $$range[0]>$$range[2];
    croak "bad cols $$range[1]-$$range[3]" if $$range[1]>$$range[3];
    my @cis = $$range[1]-1 .. $$range[3]-1;
    return [ map { sub{\@_}->(@{$$data[$_]}[@cis]) }
        $$range[0]-1 .. $$range[2]-1 ]
}

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In reply to Re^2: Selecting Ranges of 2-Dimensional Data by haukex
in thread Selecting Ranges of 2-Dimensional Data by haukex

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