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plot date
2 messages · li xian, Brian Ripley
On Wed, 10 Mar 2004, li xian wrote:
I was trying to plot date time vs numeric values. Number of My date value are about 4000, It is continuous time series, 3 days, the interveal is 5 minutes, (2002-09-22 12:35:00 pm to 2002-09-22 3:40:00 pm) How can i plot it in R? I tried the regular way: formattime <- strptime(time, format= "%d-%b-%y %I:%M %p") plot(formattime, outNum)
However the x axes doen't give me the hours by each three days, instead it is "mon" "tue" etc. What should I do?
Read ?axis.POSIXct and its examples. The plot method has to guess how you want the axis labelled, but by taking charge you can have your way.
Brian D. Ripley, ripley at stats.ox.ac.uk 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