comment on

The OP doesn't say that so I assume that you know them personally?

In the level of thread that I directly replied to, the Original Poster says: "I am a PhD genome biologist still getting to grips with the finer details of Perl".

The OP says they have "an array with 5 elements" but you chose to store that in a string and then split it.

Well, I certainly did focus on the OP's description of the output:

one two three four five
row_1 = 1 1 0 0 1
row_2 = 0 1 0 1 0
row_3 = 1 0 1 1 1
etc...
[download]

It looked to me like there would be line with the column names - I certainly was thinking about a normal CSV type header. If not so what? We are focusing on the wrong detail.

I think we are getting bogged down into small details... You posted an excellent solution as did I. Let's leave it at that.

In reply to Re^7: making presence/absence table from a hash of arrays by Marshall
in thread making presence/absence table from a hash of arrays by reubs85

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