[R] Summing up Non-numeric column

zhiji19 zhiji19 at gmail.com
Wed Dec 8 05:56:53 CET 2010


Dear All

If I have the following dataset

V1 V2
x   y
y   x
z   b
a   c
b   j
d   l
c   o

How do I use R command to get the total number of different letter in column
"V1"
column "V1" has 7 different letters.

Thank you
-- 
View this message in context: http://r.789695.n4.nabble.com/Summing-up-Non-numeric-column-tp3077710p3077710.html
Sent from the R help mailing list archive at Nabble.com.



More information about the R-help mailing list