Hello R-help:
I was hoping someone could help me understand a particular function i came
across in a package:
"$.myClass" <- function( x, name ) {
sym = paste( "foo", name, sep = "_" )
if( is.loaded(sym) )
.Call(sym,x)
}
I understand the paste, and .Call part, but I'm not sure how this function
would get called? What exactly is $. ? is it a regular expression? Would a
user call this method directly, or is it an internal function that gets
called according to a class/type.
something similar to:
plot.lm()
Thanks in advance !
Greg
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