In a recent SO post this came up (changed example to simplify it
here). It seems that `test` still has the value sin.
test <- sin
environment(test)$test <- cos
test(0)
## [1] 0
It appears to be related to the double use of `test` in `$<-` since if
we break it up it works as expected:
test <- sin
e <- environment(test)
e$test <- cos
test(0)
## [1] 1
`assign` also works:
test <- sin
assign("test", cos, environment(test))
test(0)
## [1] 1
Can anyone shed some light on this?
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