On 08/26/2013 01:09 AM, Sudheer Joseph wrote:
Attached is a plot with a time series. If I have a time series object in R.
How do I get the plot in the attached format of time axis?. When I issue
plot(ts) I get a time series plot with tic only for years.
Hi Sudheer,
If your problem is similar to that answered last week "X axis label as
months", you can follow the suggestion by the other Jim and then add a
custom x axis. The problem is getting the axis labels aligned, and this
function:
tsxpos<-function(x) {
# make sure that there is a graphics device open
if(dev.cur() == 1) stop("A graphics device must be open")
plotlim<-par("usr")
divlim<-ifelse(par("xaxs") == "r",0.04,0)
xrange<-(plotlim[2]-plotlim[1])/(1+2*divlim)
xstart<-plotlim[1]+xrange*divlim
nint<-length(x)-1
return(cumsum(c(xstart,rep(xrange/nint,nint))))
}
when called after creating the original time series plot will return the
x positions for the time series (the "x" argument is for the time series
object). You can then pass these values to the axis function in the "at"
argument with your desired labels in the "labels" argument. This
function has been added to the plotrix package and will appear in the
next version.
Jim
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