in reply to Re^2: Matching patterns in condisional statements
in thread Matching patterns in condisional statements

I cannot see why you would need a data sample

Because it allows for a completely reproduceable situation where someone wanting to help only has to copy/paste and not try to recreate input data by hand (and possibly get it wrong).

Please see Short self-contained correct example.

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Re^4: Matching patterns in condisional statements
by Anonymous Monk on Jul 06, 2017 at 22:48 UTC
    It's the converse. You are seeing if a then b. where a is your program and b is your problem. I think the monks want to see if b then a. ( the converse ) I'm definitely contra-positive about that.