R from function to its name
In my research, I design an algorithm for various testing problems. In the R implementation of the algorithm, I take the function name of testing problems as an argument.
myTestFun1 <- function() {
...
}
myTestFun2 <- function() {
...
}
myMain <- function(testFun) {
...
}
R works greatly since it passes function as variable (so-called functional programming?)
In myMain function, I want to generate output looks like
test function: myTestFun1
value: ....
Here I got a problem, since R passes the function to testFun, the names of those testing functions (myTestFun1 and myTestFun2) are not retrievable. To walk around it, instead of passing the function, I pass the name of test function and use match.fun to extract the desired function object.
myMainNew <- function(testFunName) {
testFun <- match.fun(testFunName)
}