Greetings, I built a hash of hashes with the data read from a text file. The keys are numeric such as "4.98 5.00 5.02 ..." and the values are counts. The result of any arithmetics performed on keys and values yields a result where the 5.00 key is undef (and only that one). Of course there are warnings of "use of uninitialized value in multiplication". I've tried to handle it various ways, but to no avail and it seems clean in the text file. Any tips on what is happening? You will have understood I am at the very beginning of my journey.... Thanks!

In reply to Numeric as hash key returns undef... by journey

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