I have 3 xts objects: test, cond1, cond2 You can download here: https://dl.dropboxusercontent.com/u/102669/obj.rar
My problem is very simple. test [ cond1 < cond2] = NA THIS WORKS test [ cond1 < cond2] = -test [ cond1 < cond2] THIS DOESN'T WORKS Why? My objective is to substitute all values in test (when cond1 < cond2) with the corresponding values of test but with negative sign ______________________________________________ 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.