Getting rid of selected columns


 
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Old 10-12-2009
Getting rid of selected columns

Hi All,

I've got a file like this:

Code:
a 1 0 0 0 1 0 0 1 1 3 3 1 4 4 4
b 1 0 0 0 1 4 4 1 3 1 1 4 4 2 2
c 1 0 0 0 2 0 0 3 3 1 3 1 1 2 4
d 1 0 0 0 2 0 0 1 1 0 0 4 4 2 4

The file has ~4200 entries. I need to exclude those columns that are zeros for all those rows that have 2 in column 6. For example rows starting with c and d have 2 in column 6 and thus, I need to get rid of column one as it has zeros for both c and d.

The new file should look like this:

Code:
a 1 0 0 0 1 1 1 3 3 1 4 4 4
b 1 0 0 0 1 1 3 1 1 4 4 2 2
c 1 0 0 0 2 3 3 1 3 1 1 2 4
d 1 0 0 0 2 1 1 0 0 4 4 2 4

Any help will be greatly appreciated!

Many thanks in advance!
 
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Graphics::Primitive::Insets(3pm)			User Contributed Perl Documentation			  Graphics::Primitive::Insets(3pm)

NAME
Graphics::Primitive::Insets - Space between things DESCRIPTION
Graphics::Primitive::Insets represents the amount of space that surrounds something. This object can be used to represent either padding or margins (in the CSS sense, one being inside the bounding box, the other being outside) SYNOPSIS
use Graphics::Primitive::Insets; my $insets = Graphics::Primitive::Insets->new({ top => 5, bottom => 5, left => 5, right => 5 }); METHODS
Constructor new Creates a new Graphics::Primitive::Insets. Instance Methods as_array Return these insets as an array in the form of top, right, bottom and left. bottom Set/Get the inset from the bottom. equal_to Determine if these Insets are equal to another. left Set/Get the inset from the left. right Set/Get the inset from the right. top Set/Get the inset from the top. zero Sets all the insets (top, left, bottom, right) to 0. AUTHOR
Cory Watson, "<gphat@cpan.org>" SEE ALSO
perl(1) COPYRIGHT &; LICENSE Copyright 2008-2010 by Cory G Watson. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.12.3 2010-08-21 Graphics::Primitive::Insets(3pm)