Yeah, my bad, I only meant {TTTT}{I2} - which is what my code does, I shouldn't have asked about {TTAT}{I1}..

My understanding is as follows. You get a pair "TTAT", "I2", and you say to yourself 'But this TTAT might actually be TTTT - so let's increase {TTTT}{I2} for good measure.. We'll increase {TTAT}{I2} too, when we get there...'

If this is what you want to do, then my snippet should work fine.. The {map {(split)... line saves the unique 4 letter codes we have. Then for each line '$tid $item', 
grep {hd($item,$_) <= $d} keys %$trans_map_ref

[download]
gives us which of our 4 letter codes $item might be. For each of them, we increase their {$tid} field.

I think the problem here is that your function tries to do everything at once.. Maybe you can split it in 2 pieces - first find all pairs of neighbours between the 4 letter codes, then go through your array and for every item with a tid, also increase this tid for it's neighbours..

hopefully this isn't just more mud...

In reply to Re^3: Element Count from Array to HoH by ivancho
in thread Element Count from Array to HoH by monkfan

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