Hi, I'd like to know if there is an equivalent for #ifdef (Clangage) in R. I 'd like to do something like:
useDebug = defmacro(DEBUG, expr=(DEBUG==1)) if(useDebug(0)){ #Here I do not use debug mode make_addition = function(a, b) { c=a+b plot(c) return(c) } }else{ #here I use debug mode c=a+b } I assume this would work... The problem is : if I have 15 lines of code in if{ } bloc I have to copy and paste these15 lines into else{} bloc. These is too many lines in my file... Is there something like (in C langage): #define DEBUG 1 #ifndef DEBUG make_addition = function(a, b) { #endif #ifdef DEBUG a = 1 b = 2 #endif c=a+b plot(c) #ifndef DEBUG return(c) } #endif my goal is to run my program WITHOUT calling my_addition(1, 2) (for debugging). The main problem : all variables do not exist when just running my _file.R , I have to call my_function if I want to see results. I use RStudio Thanks for your help -- View this message in context: http://r.789695.n4.nabble.com/is-there-an-equivalent-for-ifdef-C-langage-in-R-tp4289356p4289356.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.