[R] plot dates

[Jim Lemon]

On 04/26/2010 08:05 PM, karine heerah wrote:
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> hi everybody,
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> How can you plot some dates? I mean how can i have the tickmarks with the label of each date on my x axis?
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> The dates i use are in POSIXct format, i don't know if it matters.
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Hi Karine,
Here's one way:

plot(1:3,xaxt="n")
tickpos<-1:3
vgridpos<-as.POSIXct(c("2010-01-01","2010-06-01","2010-11-01"))
vgridlab<-format.POSIXct(vgridpos,"%d/%m/%Y")
axis(1,at=tickpos,labels=vgridlab)

Jim