Assignment in environment

On So, Feb 7, 2016 at 2:46 , Duncan Murdoch <murdoch.duncan at gmail.com> 
wrote:

An assignment function should return the modified value.  So it looks 
like you would need


'getValue<-' <- function(x, value) {
   environment(x)$mylist <- value
   x
 }

Thanks. I have not thought of a return value. That makes the difference.

but in fact, this doesn't work:

getValue(fn)[[1]] <- 3
Error in getValue(fn)[[1]] <- 3 : could not find function "getValue"

I have a "getValue" function anyway. It was even the other way round. I 
wanted to assign values without a function "getValue<-" and was rebuked 
by R that this function was missing.

Thanks to both of you, Peter and Duncan.

Best regards,
Daniel