Re^2: read the whole folder files

Well, the warning says there is an uninitialized value in a pattern match, so clearly that means that $energy_consumption is undefined when you get there. That value is assigned in your split, so therefore the split isn't outputting at least 8 values. I suspect that your input file is not formatted as your expect. A quick way to find the offending lines would be to add the block

if (not defined $energy_consumption) {
    warn "Split missed, $file: $_";
    next;
}
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after the split, and see what comes out. My guess is that you are working with tab-delimited files, and there are some empty values.

#11929 First ask yourself `How would I do this without a computer?' Then have the computer do it the same way.

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Re^3: read the whole folder files by perllearner007 (Acolyte) on Apr 10, 2012 at 19:09 UTC
Hello, Thank you for your time..I added the block after split but it keeps warning me.. I checked the output of the tab-delim file aswell..Doesn't seem to be a problem there.. it just outputs something like the following `split missed, myresultfile.txt: 61283067 61283865 798 0.57412` [download]	[reply] [d/l]
Re^4: read the whole folder files by kennethk (Abbot) on Apr 10, 2012 at 20:40 UTC
The block was not intended to fix the warning; it was intended to point out how to find your issue. You have a line that contains "`61283067 61283865 798 0.57412`" that your split fails on. There are clearly only 4 entries on that line, not the 8 required to populate the variable in question. You need to modify your split (or perhaps swap to a regular expression) to reflect the actual input. #11929 First ask yourself `How would I do this without a computer?' Then have the computer do it the same way.	[reply] [d/l]