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Full Discussion: Generate list of letters
Top Forums Shell Programming and Scripting Generate list of letters Post 302924083 by sea on Thursday 6th of November 2014 06:58:20 AM
Old 11-06-2014
I guess it would be easier to make a simple hardcoded letter-list?

EDIT:
Thank you RudiC

---------- Post updated at 12:58 ---------- Previous update was at 12:05 ----------

So, having now a function to 'transform' a number into a letter.
Any performance suggestions?

Code:
	list=( $(echo {a..z} ))

	num2char() { # NUM
	# Returns a letter string: a-z
	# Or: aa-az ba-bz, etc
		num=$1
		out=""
		if [[ $num -lt ${#list[@]} ]]
		then	out="${list[$num]}"
		else	high=$[ $num / ${#list[@]} ]
			out="${list[$high-1]}${list[$num - ($high * ${#list[@]})]}"
		fi
		echo "$out"
	}

Code:
time ./tui-list -a {a..z} \
	{a..z} {a..z} {a..z} \
	{a..z} {a..z} {a..z} \
	{a..z} {a..z} {a..z} \
	{a..z} {a..z} {a..z} \
	{a..z} {a..z} {a..z}
..
...
# | ox) x                                                                                                          | #
# | oy) y                                                                                                          | #
# | oz) z                                                                                                          | #
DEBUG 416 lines shown

real	0m2.671s
user	0m0.788s
sys	0m0.609s

Have a good day

EDIT:
Ouch, without tui-echo, but just echo, its like more than 2 secs faster..
Guess it's all fine then Smilie
Code:
...
oz) z
DEBUG 416 lines shown

real	0m0.218s
user	0m0.030s
sys	0m0.041s

Guess its the interface causing the slowness.

Last edited by sea; 11-06-2014 at 07:30 AM..
 

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Bio::Map::OrderedPositionWithDistance(3pm)		User Contributed Perl Documentation		Bio::Map::OrderedPositionWithDistance(3pm)

NAME
Bio::Map::OrderedPositionWithDistance - Abstracts the notion of a member of an ordered list of markers. Each marker is a certain distance from the one in the ordered list before it. SYNOPSIS
use Bio::Map::OrderedPositionWithDistance; # the first marker in the sequence my $position = Bio::Map::OrderedPositionWithDistance->new(-positions => 1, -distance => 22.3 ); # the second marker in the sequence, 15.6 units from the fist one my $position2 = Bio::Map::OrderedPositionWithDistance->new(-positions => 2, -distance => 15.6 ); # the third marker in the sequence, coincidental with the second # marker my $position3 = Bio::Map::OrderedPositionWithDistance->new(-positions => 3, -distance => 0 ); DESCRIPTION
This object is an implementation of the PositionI interface and the Position object handles the specific values of a position. OrderedPositionWithDistance is intended to be slightly more specific then Position but only specific enough for a parser from the MarkerIO subsystem to create and then pass to a client application to bless into the proper type. For an example of how this is intended to work, see the Mapmaker.pm. No units are assumed here - units are handled by context of which Map a position is placed in. Se Bio::Map::Position for additional information. FEEDBACK
Mailing Lists User feedback is an integral part of the evolution of this and other Bioperl modules. Send your comments and suggestions preferably to the Bioperl mailing list. Your participation is much appreciated. bioperl-l@bioperl.org - General discussion http://bioperl.org/wiki/Mailing_lists - About the mailing lists Support Please direct usage questions or support issues to the mailing list: bioperl-l@bioperl.org rather than to the module maintainer directly. Many experienced and reponsive experts will be able look at the problem and quickly address it. Please include a thorough description of the problem with code and data examples if at all possible. Reporting Bugs Report bugs to the Bioperl bug tracking system to help us keep track of the bugs and their resolution. Bug reports can be submitted via the web: https://redmine.open-bio.org/projects/bioperl/ AUTHOR - Chad Matsalla Email bioinformatics1@dieselwurks.com CONTRIBUTORS
Lincoln Stein, lstein@cshl.org Heikki Lehvaslaiho, heikki-at-bioperl-dot-org APPENDIX
The rest of the documentation details each of the object methods. Internal methods are usually preceded with a _ new Title : new Usage : my $obj = Bio::Map::OrderedPositionWithDistance->new(); Function: Builds a new Bio::Map::OrderedPositionWithDistance object Returns : Bio::Map::OrderedPositionWithDistance Args : -positions - Should be a single value representing the order of this marker within the list of markers -distance - The distance this marker is from the marker before it. 0 reflects coincidentality. distance($new_distance) Title : distance($new_distance) Usage : $position->distance(new_distance) _or_ $position->distance() Function: get/set the distance of this position from the previous marker Returns : A scalar representing the current distance for this position. Args : If $new_distance is provided the distance of this Position will be set to $new_distance perl v5.14.2 2012-03-02 Bio::Map::OrderedPositionWithDistance(3pm)
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