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QuestionHelp me please...!!!........ Pin
Hapyak26-Feb-11 0:07
sussHapyak26-Feb-11 0:07 
Dear all,
I am off because my program is not working. I tried to combine the three arrays of gene expression to get single array. Then I tried to get a subset of array from the single combined array. So I wrote the following code:

But the problem is this:
Use of uninitialized value $val in scalar chomp at C:\manoj_bioinform\expression.pl line 33, <DIAMIDE> line 8808.

Please help me what's wrong with my program..........!!! Frown | :(




#!/usr/bin/perl -w

#Open the three .txt file to the FILEHANDLE
#and create the arrays for all the three file
open (HYPEROSMOTIC, "hyperosmotic.txt")|| die "can't open the hyperosmotic file: $!\n";
@hyperosmotic = <HYPEROSMOTIC>;

open (HEATSHOCK, "heatshock.txt")|| die "can't open the file heatshock: $!\n";
@heatshock = <HEATSHOCK>;

open (DIAMIDE, "diamide.txt")|| die "can't open the file diamide: $!\n";
@diamide = <DIAMIDE>;

#store all the expression data on the three array
#into single @excomb array

@excomb = (@hyperosmotic,@heatshock,@diamide);

#print @excomb;

#loop to split each line from the @expdata into a new tiny array
#the columns of data in the original file are
#separated by tabs as denoted by the /\t/
#then save only the info from column 0 and 2 as separate variable
#also "chomp" each variable to remove unseen characters

foreach $excomb(@excomb)
{
@tarray=split(/\t/, @excomb);
$genename=$tarray[0];
$val=$tarray[1];
chomp $genename;
chomp $val;
}
print @tarray;
AnswerRe: Help me please...!!!........ Pin
jschell26-Feb-11 15:12
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Questionrun once and insert twice in database Pin
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