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2013 Jan 08
2
Applying a user-defined function
...5/5)),include.lowest=TRUE)
}
#apply the CutQuintile () on every odd-numbered columns of the "test1" data frame
newcols <- sapply(test1 [, seq (1,6,2)], CutQuintiles)
# name 3 new columns based on the odd-numbered columns
names(newcols) <- paste (names(test1 [, seq (1,6,2)]), "_cat")
######
Pradip K. Muhuri, PhD
Statistician
Substance Abuse & Mental Health Services Administration
The Center for Behavioral Health Statistics and Quality
Division of Population Surveys
1 Choke Cherry Road, Room 2-1071
Rockville, MD 20857
Tel: 240-276-1070
Fax: 240-276-1260
e-mail: Prad...