On 07/12/2011 10:48 PM, Alex van der Spek wrote:
>matplot(timestamp,xymatrix,type='l')
where timestamp is a vector filled with POSIXct objects and xymatrix is
a numeric 2x2 matrix plots but the horizontal axis labels are raw
unformatted timestamps.
I would like to format these in any of the available codes for strftime,
for instance format="%H:%M".
Passing a vector of formatted strings does not work. Any obvious other
ways fail upon me as well.
Any ideas to make this work?
Hi Alex,
I would use the "xaxt" argument to matplot and then add the axis:
matplot(...,xaxt="n")
timelabels<-format(timestamp,"%H:%M")
axis(1,at=timestamp,labels=timelabels)
Jim
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