Hello, Imagine a data frame like so:
Intensity0 Intensity1 1 767432.1 451743.4 2 3998988.0 4642145.0 3 818974.6 552315.8 and a vector like so: [1] 1 2 1 How can I get R to produce a vector that contains the value in one column or the other depending on the vector? The result should look like [1] 767432.1 4642145.0 818974.6 Thanks for any hints! Joh ______________________________________________ R-help@stat.math.ethz.ch 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.
