Comments on: Getting the transpose of a CSV http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/ Wed, 10 Mar 2010 05:55:11 +0000 http://wordpress.org/?v=2.2.1 By: perl script for transposing csv « Economics should be open http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/#comment-13911 perl script for transposing csv « Economics should be open Thu, 02 Oct 2008 00:05:01 +0000 http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/#comment-13911 [...] Found what I needed here: http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/ [...] […] Found what I needed here: http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/ […]

]]> By: Howard Chong http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/#comment-13910 Howard Chong Thu, 02 Oct 2008 00:01:33 +0000 http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/#comment-13910 Thanks for the script. Just a comment though. You have the if condition: elsif ($AoA[$j][$i] eq ""){ print RESULT "\n"; last; this ignore that all elements past j in $AoA[$j][$i]. That is, if you have any missing values that are coded as blanks, this imposes that blanks are afterwards. I think this is probably good for your dataset (you have streams of observations of different lengths (?)) Since my data has missing observations coded as blanks, I'm gonna remove this elseif condition. As an example a csv file with one line: 1, 2, 3, 4, 5, , 7, 8, 9 would be transposed to: 1 2 3 4 5 and the values after the blank would get dropped off. Thanks for the script.

Just a comment though. You have the if condition:
elsif ($AoA[$j][$i] eq “”){
print RESULT “\n”;
last;

this ignore that all elements past j in $AoA[$j][$i].

That is, if you have any missing values that are coded as blanks, this imposes that blanks are afterwards. I think this is probably good for your dataset (you have streams of observations of different lengths (?))

Since my data has missing observations coded as blanks, I’m gonna remove this elseif condition.

As an example

a csv file with one line:
1, 2, 3, 4, 5, , 7, 8, 9

would be transposed to:
1
2
3
4
5

and the values after the blank would get dropped off.

]]> By: Pedro http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/#comment-13674 Pedro Tue, 23 Sep 2008 13:46:21 +0000 http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/#comment-13674 Hi, There seams to be a problem with this script. If the CSV has empty cells, the following cells after those, will disappear when transposed! Hi,

There seams to be a problem with this script.
If the CSV has empty cells, the following cells after those, will disappear when transposed!

]]> By: PD http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/#comment-10873 PD Fri, 04 Apr 2008 17:05:08 +0000 http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/#comment-10873 Thanks. This was a great help. It worked like a charm. Thanks. This was a great help. It worked like a charm.

]]> By: Anand http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/#comment-10545 Anand Wed, 12 Mar 2008 16:52:18 +0000 http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/#comment-10545 Thank you very much! I was trying to write something like this to transpose the 4000 column files that I get, but I suck at Perl. This is perfect! Thank you very much! I was trying to write something like this to transpose the 4000 column files that I get, but I suck at Perl. This is perfect!

]]> By: Alex Hurst http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/#comment-5419 Alex Hurst Mon, 08 Oct 2007 16:29:34 +0000 http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/#comment-5419 I'm studying population dynamics of plankton in British Columbia, and have been building my data analysis tools in Perl. I found this script immensely useful. A godsend, actually, for a Perl beginner like me. Have you thought about contributing it to CPAN? I’m studying population dynamics of plankton in British Columbia, and have been building my data analysis tools in Perl. I found this script immensely useful. A godsend, actually, for a Perl beginner like me. Have you thought about contributing it to CPAN?

]]> By: lvs http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/#comment-4677 lvs Tue, 18 Sep 2007 18:17:31 +0000 http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/#comment-4677 Excelent script! Thank you very much! Excelent script! Thank you very much!

]]> By: Allan http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/#comment-23 Allan Mon, 26 Feb 2007 03:22:42 +0000 http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/#comment-23 Crap, I accidentally posted into the wrong article. Oh well, my comment still remains: I need a BNFO fix! Crap, I accidentally posted into the wrong article. Oh well, my comment still remains: I need a BNFO fix!

]]> By: Brian http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/#comment-19 Brian Mon, 12 Feb 2007 18:35:11 +0000 http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/#comment-19 Not really related to this post, but possibly of use: http://www.macresearch.org/openmacgrid If nothing else, you can donate to the cause. What will those fancy, shiny mac users think of next? Not really related to this post, but possibly of use:

http://www.macresearch.org/openmacgrid

If nothing else, you can donate to the cause. What will those fancy, shiny mac users think of next?

]]> By: Nicholson http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/#comment-16 Nicholson Thu, 08 Feb 2007 17:19:33 +0000 http://biowhat.com/2007/01/14/getting-the-transpose-of-a-csv/#comment-16 Hi - I'd love to use this script, but the link leads to a 404... Thanks, Nicholson Hi - I’d love to use this script, but the link leads to a 404…
Thanks,
Nicholson

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