Cars93.summary {DAAG} | R Documentation |
The Cars93.summary
data frame has 6 rows and 4 columns
created from information in the Cars93
data set in the Venables
and Ripley MASS package. Each row corresponds to a different
class of car (e.g. Compact, Large, etc.).
Cars93.summary
This data frame contains the following columns:
C
Compact, L
Large,
M
Mid-Size, Sm
Small,
Sp
Sporty, V
VanLock, R. H. (1993) 1993 New Car Data. Journal of Statistics Education 1(1)
MASS library
type <- Cars93.summary$abbrev type <- Cars93.summary[,4] type <- Cars93.summary[,"abbrev"] type <- Cars93.summary[[4]] # Take the object that is stored # in the fourth list element. type pause() attach(Cars93.summary) # R can now access the columns of Cars93.summary directly abbrev detach("Cars93.summary") pause() # To change the name of the \verb!abbrev! variable (the fourth column) names(Cars93.summary)[4] <- "code" pause() # To change all of the names, try names(Cars93.summary) <- c("minpass","maxpass","number","code")