Re^4: Stuck in my final step of code using array of arrays

It is actually the 1st letter after the end of the element in the array of arrays that precedes the "wanted" one (i.e. PF03797 in this case).
I had:

0 [ PF12951 421 455 ], 
1 [ PF03797 822 1073 ], 
2 [ PF12951 515 547 ],
[download]

, so, I need the range between the end of whatever is before PF03797 until the beginning of whatever is after PF03797 (in this case there is nothing, since both PF12951 finish before the position 822 that PF03797 starts).

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Re^5: Stuck in my final step of code using array of arrays by Laurent_R (Canon) on Mar 02, 2014 at 19:54 UTC
Alright, if I understand well, then it means that your data is not in the right order, the order that you want to use is the order given by the second or third field. The easiest might then be to start by sorting your AoA in accordance with the second field of each sub-array.	[reply]
Re^6: Stuck in my final step of code using array of arrays by Anonymous Monk on Mar 02, 2014 at 20:05 UTC
Yes but I have a hash with 90+ elements that are "important", it's not only `PF03797` like I posted in the example... So my question, in essence is: given my AoA, if I go through it and I discover my "important" code (like `PF03797`), then find the element in the AoA that is just before it in the sequence (in this case the closest one ends in position 547) and print the range from this position (548) till end end of `PF03797` (which I already know of course).	[reply] [d/l] [select]
Re^7: Stuck in my final step of code using array of arrays by Laurent_R (Canon) on Mar 02, 2014 at 21:14 UTC
Yes, I think I get it. Sort your array (see my other post on how to do it: Re: Stuck in my final step of code using array of arrays). Then go through the array sequentially; for each element in the array, look into your hash if the element is of specific interest, and if it is, look at the end of the previous range (you might store it in a temporary variable as you scan the array so that you don't need to go back to the previous record), get the end of the current range and print out what you need. Is this clear enough? Building on my @d sorted array given in the afore-mentioned other post, this can be something like that (still demonstrated under the Perl debugger): `DB<6> $hash{'PF03797'} =1; DB<7> foreach $aref (@d) { print "$aref->[0]: ", $previous+1, " $are +f->[2] \n" if exists $hash{$aref->[0]}; $previous = $aref->[2];}` [download] Which prints: `PF03797: 548 1073` [download] because I created the hash for value PF03797.	[reply] [d/l] [select]