[R] Deleting a specific value in a column of a data frame

[javad bayat]

Dear R users;
I have two columns data frame (column names is A and B). I want to write a
function in order to compare column of B with A and if the values of B are
equal or greater than that of A, replace them with "NA" or delete them and
if the values of B are less than values in A, do nothing.

Sincerely.

-- 
Best Regards
Javad Bayat
M.Sc. Environment Engineering
Alternative Mail: bayat194 using yahoo.com

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