[R] doubt about string comparison
Charles C. Berry
cberry at tajo.ucsd.edu
Sat Aug 18 19:05:51 CEST 2007
sub( "-", "-dash-", "a-b" )
sub( "-.*", "", "a-b" )
On Sat, 18 Aug 2007, ramakanth reddy wrote:
> I have two large arrays of strings array1 with 180000 names and array2 with 24000 names ,I want to find the common names in both of them.
> My arrays are for example
> Array1 Array2
> MFG12 SNRPD-signal induced...
> CFH1A RNF-ribose nucleic...
> array 2 ,has description of the abbreviation ,how can I remove the
> description part before using intersect command to match common names
> in array1 and array2.
> the description and abbreviation are separated by a hyphen --.
> I tried using matlab ,but due to the large file size it didnot work.
> Can you suggest me something to overcome this problem.
> Thank You
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Charles C. Berry (858) 534-2098
Dept of Family/Preventive Medicine
E mailto:cberry at tajo.ucsd.edu UC San Diego
http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901
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