[R] searching for a specific row name in R

Deepa Maheshvare deep@m@hm@ii@c @ending from gm@il@com
Mon Aug 13 07:10:10 CEST 2018

Hello Everyone,

I have a 1000 x 20 matrix. The second column of the matrix has the names of identifiers. How do I check when a certain identifier is present in the set of 1000 identifier names present in the second column. For instance, let the names of identifiers be A1,A2,...A1000. I want to check whether A501 is present .How can this be checked?

Any help will be highly appreciated.

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