Thanks Bill, In France, there is a famous joke about politician: "Tell me what you need, I will explain you how to do without"... But in my specific case, I can not use the classical <- and [, it is why I ask my question.
More precisely, my fonction fooBis can be very long to end. So I want to update the value of my variable from time to time. 'assign' + break will work, whereas `fooBis<-` <- function(x, value) { x <- 4 ; for(i in 1:10000000){};x } + break will not work. Christophe -- View this message in context: http://r.789695.n4.nabble.com/deparse-substitute-then-assign-in-a-S4-methods-tp4356748p4361210.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.