The documentation for ts says "Only one of ‘frequency’ or ‘deltat’ should be provided" but why doesn't it enforce this with
stopifnot(missing(frequency) || missing(deltat)) Wouldn't that work? Also the documentation does not say what valid time series parameters are. To find that out one must know to RTFS in src/main/attrib.c and find that end - start = (n - 1) / frequency or end - start = (n - 1) * deltat is required to avoid an error, where n is either length(data) or nrow(data). Why can the help page for ts say that? I suppose this is picky, but a newbie just wasted a couple of days with the mysterious error thrown in badtsp in src/main/attrib.c when he ran afoul of R's argument matching rules and unintentionally supplied both frequency and deltat (thinking he was supplying deltat and ts.eps). It took me more time that it should have to figure it out too. -- Charles Geyer Professor, School of Statistics University of Minnesota char...@stat.umn.edu ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
