Search results for query: *

ok - never mind - i seem to have cracked it myself, just had to dereference each of the arrays, check the size, and remove it from the hash if it was sized one or smaller :)

sorry to resurrect this, but need some more advice if anyone can help out - of the two solutions above, I understood rharsh's better so i went with that, however my code now needs to only identify those "colours" that are associated with more than one id. so for my sample input above, i would...

ok, have given this a go with my data - no joy so far :( this is how i'm populating my hash of arrays: open (FILE, "result.text") while( <FILE> ) { chomp; ## first split ids up from colours my ($id, $colours) = split('\t', $_, 2); ## now split colours into an array my @colour_list =...

cool, i really needed a fresh perspective on the problem and you have provided just that :) will give this a try and see how it works out, thanks!

hi all - got a bit of a tricky problem, not even sure if there is a way to do it, but i'll happily be proved wrong!! i have a hash of arrays, generated from a file that looks like this: id val val val id val id val val and so on. i have had no problem reading this file into a hash of...

thanks steve - but no, that's not quite what i was after, i didn't want the array to "loop round" as it were, so once the final value in the array is reached, the loop should stop. ishnid's suggestion has produced the output i wanted :)

awesome, thanks :)

Hi, I am trying to print an array such that each element is followed by the next one, with a tab character in between, and then a new line, so that: @array = ("a", "b", "c", "d"); will be displayed as: a b b c c d so far my code is: my $i; my @array = ("a", "b", "c", "d"); my...

Thanks Steve, I'd never heard of this module before, I'll give it a go :)

Hi, I am trying to use a hash as a lookup to replace 'placeholders' in a file. I have some raw data that I have read into a hash which looks like this: id1 val1 id2 val2 id3 val3 so the keys of the hash are the id's. I have another file which looks like this: enzyme: id1 interacts with...

I have two text files, one of which is a list of names and the other is the "main" file. What I am trying to do is read both files into arrays to that I can identify lines in the "main" file that contain any of the names in my list, and then return those lines from the main file. For example...

thanks for that - tried it with quotes and it's worked how i want it to now :)

Hi there, I am writing a small script to search a text database (data_file.txt) that I have already read into a hash of arrays. My command line should look like: ./search.pl -i data_file.txt -k search terms my problem is that there is usually going to be more than one word following the -k...

thanks everyone, for all your useful posts, have got it working great now :)

Hi, I have a text database in the following format: id uid short_name desc org where all five are tab-delimited. I am trying to read this into a hash of arrays, so that "id" is the key and an array consisting of fields 1 to 4 is the value for each row in my flat file. What I basically need...

I have implemented a search of a hash using a keyword as follows: while ( my ($id, $description) = each(%hash) ) { if ($description =~ /$query_string/i) { print "$id" . "\t" . "$description"; print "\n"; } } my problem is to do with returning an error message if $query_string does...

hi, i'm not sure if anyone can help, as I am having a problem with a specific module - called Graph-0.74 (http://search.cpan.org/~jhi/Graph-0.74/) basically i am trying to use the Graph::AdjacencyMatrix module, for creating and querying an adjacency matrix and also a distance matrix. I can get...

Hi, I have some xml that I am processing using XML::Simple - my problem is that I am working with XML that needs two tags appending to the top and bottom of the document: my original file: <a tag> </a tag> <a tag> </a tag> what it should look like: <master tag> <a tag> </a tag> <a...

thanks to all, it was chomp that did the job :)

OK here is my current scenario - I have an input data file (test.txt) with pairs of nodes (tab-delimited) - G:1 G:2 G:4 G:5 G:7 G:4 G:9 G:10 G:12 G:7 I have a script to read this file and produce for each pair of nodes a statement to add the pair as an edge to a graph (thanks KevinADC!)...