I do not see any posting on this topic from Jeff Newmiller. I seek a way to “teach” R that "2021-07-25” represents a Year, Month, and Day. Greg Coats
> Fuel <- c(50.45, 61.48, 59.07, 55.40, 30.63, 41.35, 32.81, 49.86, 62.99, > 89.37) > plot (Fuel) > Dates <- c("2021-07-25", "2021-08-27", "2021-09-26", "2021-11-04", > "2021-11-22", "2021-11-26", "2021-12-06", "2022-01-14", "2022-04-29", > "2022-06-11") > plot (Dates) Error in plot.window(...) : need finite 'ylim' values In addition: Warning messages: 1: In xy.coords(x, y, xlabel, ylabel, log) : NAs introduced by coercion 2: In min(x) : no non-missing arguments to min; returning Inf 3: In max(x) : no non-missing arguments to max; returning -Inf > xyplot (Dates, Fuel) Error in xyplot(Dates, Fuel) : could not find function "xyplot" > On Jun 15, 2022, at 6:02 AM, Martin Maechler <maech...@stat.math.ethz.ch> > wrote: > Jeff Newmiller's answer which was much shorter *and* only > used base R instead of an extra package [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.