sorting a two dimensional array by one column

dannoura has asked for the wisdom of the Perl Monks concerning the following question:

Hi,

What would be the most efficient (i.e. least time consuming and least lines of code) way to sort through a two dimensional array by one column containing numeric values?

Comment on sorting a two dimensional array by one column

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Re: sorting a two dimensional array by one column by Zaxo (Archbishop) on Jul 14, 2003 at 08:18 UTC
`my @sorted = sort { $a->[$the_col] <=> $b->[$the_col] } @two_dim;` Have a look at perllol. After Compline, Zaxo	[reply] [d/l]
Re: sorting a two dimensional array by one column by antirice (Priest) on Jul 14, 2003 at 08:18 UTC
Use the sort command and the numerical comparison operator (<=>). `my @sorted = sort { $a->[$col] <=> $b->[$col] } @origarray;` [download] antirice The first rule of Perl club is - use Perl The ith rule of Perl club is - follow rule i - 1 for i > 1	[reply] [d/l]
Re: sorting a two dimensional array by one column by bigj (Monk) on Jul 14, 2003 at 15:32 UTC
In addition to the others, there is a shorter way to sort for the first column of a two dimensional array: my @sorted = sort {"@$a" <=> "@$b"} @two_dim; But please don't use it in production code :-) Greetings, Janek	[reply]