[R] 0.63 naming list elements

[Dick Repasky]

The following used to work (0.62.1 the latest that I used), and now
it doesn't (0.63.0):


force <- vector(mode = "list", length = 1)
names(force)[1] <- somename

It returns the error:
Error in "[<-"(NULL, 1) : object is not subsetable


You might argue that this approach is unnecessary now that R allows
subscripts that are out of range (e.g., force<-list(); force[["name"]] <- 42)
but I changed a lot of code to work as above, and I really don't like
the idea of reverting.

Dick
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