I have the following data: intens<-c(28000,72000,120000,150000,180000,260000,310000) #Td peakcb<-c(1.2,2.5,2.7,3.7,5.6,6.2,6.8) #presses/s peakan<-c(0.5,3.7,5.1,5.8,7.4,NA,8.4) (See why I am using NA? I can work around this problem by using intensityan and intensitycb) Now do a plot of peakan: plot(intensity, peakan, pch=10,type="b") The plot skips the point (260000,NA), but no line beyond x=260,000. I think the behaviour should be to draw a line between (180000,7.4) and (310000,8.4). Bill Simpson -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-devel 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-devel-request@stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
>>>>> "Bill" == Bill Simpson <wsimpson@uwinnipeg.ca> writes:Bill> (See why I am using NA? I can work around this problem by using Bill> intensityan and intensitycb) Bill> Now do a plot of peakan: Bill> plot(intensity, peakan, pch=10,type="b") Bill> The plot skips the point (260000,NA), but no line beyond x=260,000. Bill> I think the behaviour should be to draw a line between Bill> (180000,7.4) and (310000,8.4). I respectfully disagree. If the data were in fact longitudinal data, with missing observations, one valid scenario would be to halt, which is what is happening. Maybe a na.omit flag would be appropriate for plot? (is there one? I'm just speculating, not having easy access to R or Splus today). best, -tony -- Anthony Rossini Manifold Graphics / Epimetrics -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-devel 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-devel-request@stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._