On Sun, 11 Apr 2004, Linda portman wrote: > I am trying to plot "time" variable (the time is recoded for three days at 5 minutes > interval in the format of 2001-05-14 13:45:00) VS. blood pressure. My code is the > following: > > > 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")
> However the plot only shows three values 14-Apr, 15-Apr and 16 Apr, I > would like to have 24 hours marked on the x axis for each day. How can I > do it? Thanks a lot! You asked for exactly values by day, so is it so surprising that you got what you asked for? (That's the point of at vs x.) Try by="hour" with a suitable format. -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ [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