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myvars
2007 Aug 26
3
subset using noncontiguous variables by name (not index)
...hanks,
Bob
mydata <- data.frame(
x1=c(1,2,3,4,5),
x2=c(1,2,3,4,5),
x3=c(1,2,3,4,5),
x4=c(1,2,3,4,5),
x5=c(1,2,3,4,5),
x6=c(1,2,3,4,5),
x7=c(1,2,3,4,5)
)
mydata
# This does what I want.
summary(
subset(mydata,select=c(x1,x3:x5,x7) )
)
# Can I substitute myVars?
attach(mydata)
myVars1 <- c(x1,x3:x5,x7)
# Not looking good!
myVars1
# This doesn't do the right thing.
summary(
subset(mydata,select=myVars1 )
)
# Total desperation on this attempt:
myVars2 <- "x1,x3:x5,x7"
myVars2
# This doesn't work either.
summary(
subset(mydata,select=myVars2 )
)...