HI,
I just answered to one with similar contents but with a different title. I
guess both are the same.
A.K.
- Original Message -
From: Sapana Lohani
To: R help
Cc:
Sent: Tuesday, August 28, 2012 5:41 PM
Subject: [R] Error in ops.factor: check and verify
Hi, may be i was not
Hi, may be i was not clear when I made this query before.
I have 6 columns in my dataframe (test)
A B C D E F
a b c d 40 30
a f a b 20 10
x m y m 50 30
I want a new column which gets value in E if character value in column A
matches with that in column C. One more column comparing B and D. It
2 matches
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