[Tutor] Please help with comparision in range of numbers
srini_iyyer_bio at yahoo.com
Thu Sep 15 23:39:41 CEST 2005
I have a data like this in tab-delim text.
1427021_s_at chr7:102786983-102794499 (+)
1452285_a_at chr7:102786983-102794499 (+)
1445553_at chr7:102848766-102910961 (-)
1420925_at chr7:102863841-102887410 (+)
1450041_a_at chr7:102863841-102887410 (+)
1447553_x_at chr7:102899711-102899995 (-)
1418478_at chr7:102991513-103023463 (-)
1452892_at chr7:103132162-103291925 (-)
1430157_at chr7:103292083-103297768 (+)
First column represents the identifier.
Second column representes the position of the
identifier on genome. Because many people might not
understand genome, lets consider it as a sequence
composed of A, T , G and C with lengths of thousands
of thousands of ATGCs.
The analogy is something like:
Jill am driving from washington DC to Miami on I-95
Jack is driving from Miami to DC on I-95 North.
If we scale the I-95 South as (-) (negative direction)
from 0-1000000000 units (arbitary) and similarly, I-95
North as (+) (positive direction) again from 0-500,000
My aims is to find if Jack and Jill happen to be in
Florence, south carolina then coordinates (considering
that they are apart 1 or 2 miles or units distance)
then they would be something like :
Jack chr7:102863841-102887410 (+)
Jill chr7:102886711-102899995 (-)
Then they are falling in the same range of coordinates
(between 86711 and 87410).
I want to find such instances of jack and jill's that
fall in the same ranges and they should be in opposite
to each other.
Truely, I always flunk and my mind gets blackedout
when I see these number ranges. I do not know how to
write : check "if a range of numbers fall in the other
range of numbers" condition.
tutors could any one help me please.
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