%<-active% {keras}

Make an Active Binding

Description

Make an Active Binding

Usage

sym %<-active% value

Arguments

sym

symbol to bind

value

A function to call when the value of sym is accessed.

Details

Active bindings defined in a %py_class% are converted to ⁠@property⁠ decorated methods.

Value

value, invisibly

See Also

makeActiveBinding()

Examples

set.seed(1234)
x %<-active% function(value) {
  message("Evaluating function of active binding")
  if(missing(value))
    runif(1)
  else
   message("Received: ", value)
}
x
x
x <- "foo"
x <- "foo"
x
rm(x) # cleanup