[R] Returning to parent function

Saptarshi Guha saptarshi.guha at gmail.com
Mon Mar 16 23:08:35 CET 2015


I would like a function X to return to the place that called the
function XParent that called this function X.

Y calls XParent
Y = function(){

XParent calls X

XParent = function(){

X returns to the point just after the call to XParent. Hence
print("H") is not called, but instead "hello" is printed.

An example of what i'm going for is this

continueIfTrue <- function(filterExp, grpname, subname,n=1){
    y <- substitute(filterExp)
    res <- isn(eval(y, envir=parent.frame()),FALSE)
    ## if res is FALSE, I would like to return from telemStats

telemStats <- function(a,b){
    b <- c(10,12)
    continueIfTrue( {    length(b) >=10 }, "progStats","00")
    print("Since the above condition failed, I would not like this
message to be printed")

I looked into callCC and signals but dont think i understood correctly.
Any hints would be appreciated

Kind Regards

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