all.names.assigned(expr) all.names.used(expr)
expr that are
assigned to or are used.
all.names.used is similar to
all.names, but the result
* does not include names of index variables, e.g.
i
in
for(i in 1:5)...,
* does not include names assigned to, e.g.
a
in
a <- x + y, and
* includes
<- and
<<-.
all.names.used( expression( a <- x+y)) all.names.used( expression( a[w] <- x+y)) all.names.used( expression( for(i in 1:15) a[i] <- 7+i)) all.names.used( expression( dim(x) <- c(3,2))) all.names.assigned(expression( a <- x+y)) all.names.assigned(expression( a[w] <- x+y)) all.names.assigned(expression( for(i in 1:15) a[i] <- 7+i)) all.names.assigned(expression( dim(x) <- c(3,2)))