The OP is a biologist, not a SW person.

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

- something simple -

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

In reply to Re^6: making presence/absence table from a hash of arrays by jwkrahn
in thread making presence/absence table from a hash of arrays by reubs85

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