For three significant figures, the SAS Institute provides the following code snippet to accomplish the task. However, it is often useful to round to more or less than 3 significant figures. I’ve developed a macro to do so for my own use and am sharing the code below.
I’m making available here a basic NONMEM dataset example, along with the R code used to create it. Hopefully it will be helpful to someone in future! CSV download: http://jvdl.me/downloads/nonmem/dummy_nonmem.csv XPT download: http://jvdl.me/downloads/nonmem/dummy_nonmem.xpt