To: Bill Simpson <wsimpson@uwinnipeg.ca> Subject: Re: R-beta: quantile From: Peter Dalgaard BSA <p.dalgaard@biostat.ku.dk> Date: 27 Feb 1998 00:08:19 +0100 In-Reply-To: Bill Simpson's message of Thu, 26 Feb 1998 16:36:03 -0600 (CST) Bill Simpson <wsimpson@uwinnipeg.ca> writes: > > I do: > x<-rnorm(1000) > quantile(x,c(.025,.975)) > 2% 98% > -1.844753 1.931762 > > Since I want to find a 95% confidence interval, I take the .025 and .975 > quantiles. HOWEVER R says I have the 2% (not 2.5%) and 98% (not 97.5%) > points. Is it just rounding the printed 2% and 98%, or is it REALLY > finding .02 and .98 points instead of .025 and .975? It's rounding... At the end of the quantile function, you'll see: names(qs) <- paste(round(100 * probs), "%", sep = "") qs } Maybe we should put in an extra argument for controlling the precision of the rounding? -- O__ ---- Peter Dalgaard Blegdamsvej 3 c/ /'_ --- Dept. of Biostatistics 2200 Cph. N (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk) FAX: (+45) 35327907 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request@stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._