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Full Discussion: Sort a hash based on the string length of the values
Top Forums Shell Programming and Scripting Sort a hash based on the string length of the values Post 302756931 by rdrtx1 on Wednesday 16th of January 2013 05:42:08 PM
Old 01-16-2013
try:
Code:
#!/usr/bin/perl
 
%hash = (
key1 => "jeri",
key2 => "corona",
key3 => "una"
);
 
print "\nforward sort...\n\n";
 
foreach $key (sort {length($hash{$a}) cmp length($hash{$b})} keys %hash) {
   print "$hash{$key} $key " . length($hash{$key}) . "\n";
}
 
print "\nreverse sort...\n\n";
 
foreach $key (reverse sort {length($hash{$a}) cmp length($hash{$b})} keys %hash) {
   print "$hash{$key} $key " . length($hash{$key}) . "\n";
}

This User Gave Thanks to rdrtx1 For This Post:
jdilts
 

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LEARN ABOUT DEBIAN

re-pcr

RE-PCR(1)						      General Commands Manual							 RE-PCR(1)

NAME

       re-PCR -- Find sequence tagged sites (STS) in DNA sequences

SYNOPSIS

       re-PCR [-hV] -p hash-file [-g gaps] [-n mism] [-lq] [primer ...]

       re-PCR [-hV] -P hash-file [-g gaps] [-n mism] [-l] [-m margin] [-O+|-] [-C batchcnt] [-o outfile] [-r+|-] [primers-file ...]

       re-PCR [-hV] -s hash-file [-g gaps] [-n mism] [-lq] [-m margin] [-o outfile] [-r+|-] [left right lo[-hi] [...]]

       re-PCR [-hV] -S hash-file [-g gaps] [-n mism] [-lq] [-m margin] [-O+|-] [-C batchcnt] [-o outfile] [-r+|-] [stsfile ...]

DESCRIPTION

       Implements reverse searching (called Reverse e-PCR) to make it feasible to search the human genome sequence and other large genomes by per-
       forming STS and primer searches.

OPTIONS

       -p=hash-file
		 Perform primer lookup using hash-file

       -P=hash-file
		 Perform primer lookup using hash-file

       -s=hash-file
		 Perform STS lookup using hash-file

       -S=hash-file
		 Perform STS lookup using hash-file

       -n=mism	 Set max allowed mismatches per primer for lookup

       -g=gaps	 Set max allowed indels per primer for lookup

       -m=margin Set variability for STS size for lookup

       -l	 Use presize alignments (only if gaps>0)

       -G	 Print alignments in comments

       -d=min-max
		 Set default STS size

       -r=+|-	 Enable/disable reverse STS lookup

       -O=+|-	 Enable/disable syscall optimisation

       -C=batchcnt
		 Set number of STSes per batch

       -o=outfile
		 Set output file name

       -q	 Quiet (no progress indicator)

EXAMPLE

	famap -tN -b genome.famap org/chr_*.fa

	fahash -b genome.hash -w 12 -f3 ${PWD}/genome.famap

	re-PCR -s genome.hash -n1 -g1 ACTATTGATGATGA AGGTAGATGTTTTT 120-200

       See famap(1) and fahash(1)

SEE ALSO

       /usr/share/doc/ncbi-epcr/README.txt

       bioperl(1), e-pcr(1), famap(1) and fahash(1)

AUTHORS

       This manual page was written by Andreas Tille <tille@debian.org> for the Debian system (but may be used by others).  Permission is  granted
       to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 2 any later version published by
       the Free Software Foundation.

       On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL.

								    April 2008								 RE-PCR(1)
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