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Re: Would Perl be a good choice for this?by Discipulus (Canon) |
on Oct 02, 2017 at 19:42 UTC ( [id://1200546]=note: print w/replies, xml ) | Need Help?? |
> ..where I would even start. Hello Speed_Freak, you question is confusing me: too much data, no code at all, no code from your part, no expected results and I do not really well understand this subgroups and the goal.. But since you are asking where to start.. know your data is a good suggestion and and another good quote sounds like: when you know deeply your data, then algorithm is a matter of simply implementation. So where to start? ordering => array and indexing => hash I mean that when you are processing your data you split up elements and fill a datastructure that suits your needs. So the basic is a simple loop that consumes lines of data:
Now that you has @ele you need to coherce it to your logic: so supposing you need to store which ID ( $ele[0] ) has $ele[1] + $ele[2] you can indexing the $ele[1] $ele[2] presence and use it as key of an hash and pushing IDs as values of an anonymous array:
this leads you to a datastructure like: ("dog cat", [3], "monkey sheep", [2], "monkey cow", [1, 4]) If you just need to know which ID has monkey you'll loop keys of the hash searching the pattern monkey as in:
This is my where to start L* PS perldsc and (2004)Using Perl for Statistics: Data Processing and Statistical Computing as readmore suggestions. L*
There are no rules, there are no thumbs.. Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.
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