Hi Christine, I am afraid I cannot help as it 'appears' fine here I get an x-axis witih Oct 01 Oct 15 Nov 15 Dec 01
I don't normally use lattice but the dates seem reasonable to me Do a str(Raw) and check if Date1 is actually a date in your orginal data. It is one here but who knows with R :) John Kane Kingston ON Canada > -----Original Message----- > From: r-help@r-project.org > Sent: Mon, 17 Aug 2015 21:15:39 -0700 > To: r-help@r-project.org > Subject: [R] date format in xyplot > > To whom it may concern, > > I have tried to plot some numbers against time with the time on the > X-axis shown as "Jan", "Feb", etc. > > I used the following commands: > Raw<-structure(list(Date = structure(c(6L, 7L, 2L, 4L, 12L, 9L, 7L, > 2L, 4L, 12L), .Label = c("1/10", "1/11", "11/11", "12/11", "13/10", > "19/9", "2/10", "2/11", "20/9", "26/11", "29/10", "29/11", "30/11", > "31/10", "4/10", "6/10"), class = "factor"), Year = c(2002L, > 2002L, 2002L, 2002L, 2002L, 2002L, 2002L, 2002L, 2002L, 2002L > ), Station = structure(c(1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, > 2L), .Label = c("E", "F", "H", "I"), class = "factor"), Abun = c(3.42, > 1.33, 3.67, 3.67, 3.92, 2.17, 2.5, 1.67, 6.33, 0.67), Date1 = > structure(c(16697, > 16710, 16740, 16751, 16768, 16698, 16710, 16740, 16751, 16768 > ), class = "Date")), .Names = c("Date", "Year", "Station", "Abun", > "Date1"), row.names = c(NA, 10L), class = "data.frame") > > Raw$Date1<-as.Date(Raw$Date,"%d/%m") > xyplot(Abun~Date1|as.factor(Year),Raw,type="p",xlab=list("Month",cex=1.5),ylab=list("Abundance",cex=1.5),cex=2,pch=c(16,16,21),col=c("Black","Grey","Black"),strip=strip.custom(bg='white'),format="%B-%d") > > The date format shown on X-axis was just "10-1", "10-15" > > I should be grateful if any one could help indicating what has gone > wrong? > > Regards, > Christine > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ____________________________________________________________ FREE ONLINE PHOTOSHARING - Share your photos online with your friends and family! Visit http://www.inbox.com/photosharing to find out more! ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.