Hi, I am just curious why does this happen: I use Goldencheetah to analyse my run. It can call R to do further analysis. I run into interesting problem (for me at least). If I plot data using plot(d$time,d$heart.rate) everything is OK if I use plot(d$heart.rate~d$time) I got error: Error in inDL(x, as.logical(local), as.logical(now), ...) : unable to load shared object TC:/Programs/Sci/R/R-3.4.3/ library/stats/libs/x64/stats.dllr: LoadLibrary failure: The specified module could not be found. In addition: There were 18 warnings (use warnings() to see them) if I use hist(d$heart.rate) I got the same error. R works perfectly in Rstudio and in plain installation Problem is solved (thanks to Goldencheetah users) by adding path C:/Programs/Sci/R/R-3.4.3/bin/x64 I thought that plot(d$time,d$heart.rate) and plot(d$heart.rate~d$time) are actually the same. regards Milo? Milo? ?arkovi? Professor of Internal Medicine School of Medicine, University of Belgrade Clinic of Endocrinology, Clinical Centre of Serbia 11000 Belgrade PAK 112113 Serbia email milos.zarkovic at med.bg.ac.rs milos.zarkovic at gmail.com [[alternative HTML version deleted]]