plot(1:10) abline(v=c(3,5,7), col="red")
Linda portman <lindaportman <at> yahoo.com> writes: : : I have a variable named "Medicine" which has seven values in date format, on the following plot, how can I use : a red line to indicate the time when the medicine was taken on x axis? : : The following is my original plot of blood pressure vs. time. : plot(time, bloodpressure,xlab="Time",ylab="bPress",main="Time VS Blood Pressure", type="l", xaxt="n") : r <- as.POSIXct(round(range(Time), "days")) : axis.POSIXct(1, at=seq(r[1], r[2], by="day"), format="%d-%b") : : Thanks a lot! ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
