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2020 May 02
1
issues with environment handling in model.frame()
Dear all,
model.frame behaves in a way I don't expect when both its formula and
subset argument are passed through a function call.
This works as expected:
model.frame(~wool, warpbreaks, breaks < 15)
#> wool
#> 14 A
#> 23 A
#> 29 B
#> 50 B
fun1 <- function(y) model.frame(~wool, warpbreaks, y)
fun1(with(warpbreaks, breaks < 15))
#> wool
#> 14