Vindoggy !
2012-Nov-13 22:30 UTC
[R] Can't format x axis on a stacked plot of a zoo object
As an example data set: set.seed(1) z.Date <- as.Date(paste(2003, 02, c(1, 3, 7, 9, 14), sep = "-")) z <- zoo(cbind(left = rnorm(5), right = rnorm(5, sd = 0.2)), z.Date) tt<-time(z) fmt<-"%b-%d" labs<-format(tt,fmt) plot(z[,1], xlab = "Time", ylab = "") If I plot the data and don't like the format of the x axis I can do this: plot(z[,1], xlab = "Time", ylab = "",xaxt="n") axis(side=1, at=tt[1:5],labels=labs[1:5],cex.axis=0.7) But if I want to do a stacked plot: plot(z, xlab = "Time", ylab = "",xaxt="n") axis(side=1, at=tt[1:5],labels=labs[1:5],cex.axis=0.7) The axis command has no effect. Can someone explain what is going on and how to format a stacked plot like this? Thanks [[alternative HTML version deleted]]
Gabor Grothendieck
2012-Nov-13 22:53 UTC
[R] Can't format x axis on a stacked plot of a zoo object
On Tue, Nov 13, 2012 at 5:30 PM, Vindoggy ! <vindoggy at hotmail.com> wrote:> > As an example data set: > > set.seed(1) > z.Date <- as.Date(paste(2003, 02, c(1, 3, 7, 9, 14), sep = "-")) > z <- zoo(cbind(left = rnorm(5), right = rnorm(5, sd = 0.2)), z.Date) > > tt<-time(z) > > > > fmt<-"%b-%d" > > labs<-format(tt,fmt) > plot(z[,1], xlab = "Time", ylab = "") > > If I plot the data and don't like the format of the x axis I can do this: > > plot(z[,1], xlab = "Time", ylab = "",xaxt="n") > > axis(side=1, at=tt[1:5],labels=labs[1:5],cex.axis=0.7) > > But if I want to do a stacked plot: > > plot(z, xlab = "Time", ylab = "",xaxt="n") > axis(side=1, at=tt[1:5],labels=labs[1:5],cex.axis=0.7) >This is a FAQ. See FAQ #8 vignette("zoo-faq") and also see the examples at the bottom of ?plot.zoo -- Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.com
Jose Iparraguirre
2012-Nov-14 14:48 UTC
[R] Can't format x axis on a stacked plot of a zoo object
Hi, Have a look at this example in plot.zoo: ## Custom x axis labelling using a custom panel. # 1. test data z <- zoo(c(21, 34, 33, 41, 39, 38, 37, 28, 33, 40), as.Date(c("1992-01-10", "1992-01-17", "1992-01-24", "1992-01-31", "1992-02-07", "1992-02-14", "1992-02-21", "1992-02-28", "1992-03-06", "1992-03-13"))) zz <- merge(a = z, b = z+10) # 2. axis tick for every point. Also every 3rd point labelled. my.panel <- function(x, y, ..., pf = parent.frame()) { fmt <- "%b-%d" # format for axis labels lines(x, y, ...) # if bottom panel if (with(pf, length(panel.number) == 0 || panel.number %% nr == 0 || panel.number == nser)) { # create ticks at x values and then label every third tick axis(side = 1, at = x, labels = FALSE) ix <- seq(1, length(x), 3) labs <- format(x, fmt) axis(side = 1, at = x[ix], labels = labs[ix], tcl = -0.7, cex.axis = 0.7) } } # 3. plot plot(zz, panel = my.panel, xaxt = "n") Regards, Jose ________________________________________ From: r-help-bounces at r-project.org [r-help-bounces at r-project.org] On Behalf Of Vindoggy ! [vindoggy at hotmail.com] Sent: 13 November 2012 22:30 To: r-help at r-project.org Subject: [R] Can't format x axis on a stacked plot of a zoo object As an example data set: set.seed(1) z.Date <- as.Date(paste(2003, 02, c(1, 3, 7, 9, 14), sep = "-")) z <- zoo(cbind(left = rnorm(5), right = rnorm(5, sd = 0.2)), z.Date) tt<-time(z) fmt<-"%b-%d" labs<-format(tt,fmt) plot(z[,1], xlab = "Time", ylab = "") If I plot the data and don't like the format of the x axis I can do this: plot(z[,1], xlab = "Time", ylab = "",xaxt="n") axis(side=1, at=tt[1:5],labels=labs[1:5],cex.axis=0.7) But if I want to do a stacked plot: plot(z, xlab = "Time", ylab = "",xaxt="n") axis(side=1, at=tt[1:5],labels=labs[1:5],cex.axis=0.7) The axis command has no effect. Can someone explain what is going on and how to format a stacked plot like this? Thanks [[alternative HTML version deleted]] ______________________________________________ R-help at r-project.org mailing list 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. Wrap Up & Run 10k next March to raise vital funds for Age UK Six exciting new 10k races are taking place throughout the country and we want you to join in the fun! Whether you're a runner or not, these are events are for everyone ~ from walking groups to serious athletes. The Age UK Events Team will provide you with a training plan to suit your level and lots of tips to make this your first successful challenge of 2012. Beat the January blues and raise some vital funds to help us prevent avoidable deaths amongst older people this winter. Sign up now! www.ageuk.org.uk/10k Coming to; London Crystal Palace, Southport, Tatton Park, Cheshire Harewood House, Leeds,Coventry, Exeter Age UK Improving later life www.ageuk.org.uk ------------------------------- Age UK is a registered charity and company limited by guarantee, (registered charity number 1128267, registered company number 6825798). Registered office: Tavis House, 1-6 Tavistock Square, London WC1H 9NA. For the purposes of promoting Age UK Insurance, Age UK is an Appointed Representative of Age UK Enterprises Limited, Age UK is an Introducer Appointed Representative of JLT Benefit Solutions Limited and Simplyhealth Access for the purposes of introducing potential annuity and health cash plans customers respectively. Age UK Enterprises Limited, JLT Benefit Solutions Limited and Simplyhealth Access are all authorised and regulated by the Financial Services Authority. ------------------------------ This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you receive a message in error, please advise the sender and delete immediately. Except where this email is sent in the usual course of our business, any opinions expressed in this email are those of the author and do not necessarily reflect the opinions of Age UK or its subsidiaries and associated companies. Age UK monitors all e-mail transmissions passing through its network and may block or modify mails which are deemed to be unsuitable. Age Concern England (charity number 261794) and Help the Aged (charity number 272786) and their trading and other associated companies merged on 1st April 2009. Together they have formed the Age UK Group, dedicated to improving the lives of people in later life. The three national Age Concerns in Scotland, Northern Ireland and Wales have also merged with Help the Aged in these nations to form three registered charities: Age Scotland, Age NI, Age Cymru.