[R] x-axis with month and year

Hey list! I have a csv-file with two variables: (Date,CMI) Date,CMI Jan-93,3.24 Feb-93,-2.56 . . . Dec-06, 8.25 When I want to plot this dataset, R is sorting the date in alphabetical order. Is there any way to tell R not to do it? I know it is probably an easy issue but I couldn't find a solu

Re: [R] x-axis with month and year

To: Schreiber, Stefan Cc: r-help@r-project.org Subject: Re: [R] x-axis with month and year Check out the zoo package: Lines <- "Date,CMI Jan-93,3.24 Feb-93,-2.56 Dec-06, 8.25" library(zoo) z <- read.zoo(textConnection(Lines), FUN = as.yearmon, format = "%b-%y", sep

[R] multi panel plot using xyplot()

Hi there, I hope you guys can help me with the following: If have a file like this: yearclone codeheight 19954 4-1 1 19964 4-1 2 19974 4-1 3 19954 4-2 1 19964 4-2 2 19974 4-2 3 19955 5-1 1

[R] ANOVA on residuals to check for equality of variances

Hi all, I know that I can run an one way ANOVA on the absolute residual values to check the assumption of equal variances: model<- lm(y~x) summary(lm(abs(model$resid~x))) What if I have two factors? As far as I know I have to check this assumption on very factor/level combination. So if I have 3

[R] factor level issue after subsetting

Dear list, I cannot figure out why, after sub-setting my data, that particular item which I don't want to plot is still in the newly created subset (please see example below). R somehow remembers what was in the original data set. A work around is exporting and importing the new subset. Then it's

Re: [R] factor level issue after subsetting

Thanks for the fast response and your comments! That works perfect! Another little mystery solved ;) Stefan From: Felipe Carrillo [mailto:mazatlanmex...@yahoo.com] Sent: Tuesday, November 01, 2011 3:54 PM To: Schreiber, Stefan; r-help@r-project.org Subject: Re: [R] factor level

[R] Predicting x from y

Dear list members, I have just a quick question: I fitted a non-linear model y=a/x+b to describe my data (x=temperature and y=damage in %) and it works really nicely (see example below). I have 7 different species and 8 individuals per species. I measured damage for each individual per specie

Re: [R] Predicting x from y

t. Stefan -Original Message- From: r-help-boun...@r-project.org on behalf of ted.hard...@wlandres.net Sent: Fri 11/11/2011 4:07 PM To: r-help@r-project.org Subject: Re: [R] Predicting x from y Follow-up: See at end. On 11-Nov-11 21:16:02, Ted Harding wrote: > On 11-Nov-11 14:51:

[R] multcomp two-way anova with interactions within and between

Hi all, I'd like to compare all levels of my interaction with each other. I read the pdf 'Additional multcomp Examples' but even though there is an example with an interaction it doesn't work for me when I want to compare within and between groups. Here is an example: d.fr<-data.frame(id=r

Re: [R] work with a subset of the dataset

Or with what I just learned: subset<-[mydata$age %in% c(20:30),] Thanks for explaining Michael! Stefan -Original Message- From: r-help-boun...@r-project.org on behalf of Marc Schwartz Sent: Thu 1/12/2012 8:38 PM To: R. Michael Weylandt Cc: r-help@r-project.org; manu79 Subject: Re: [R]

Re: [R] work with a subset of the dataset

But better without calling your new data frame "subset" since it's a function as well. -Original Message- From: r-help-boun...@r-project.org on behalf of Schreiber, Stefan Sent: Thu 1/12/2012 8:50 PM To: Marc Schwartz; R. Michael Weylandt Cc: r-help@r-project.org; manu79

Re: [R] work with a subset of the dataset

Thanks for the warning ! Better use Michael's or Marc's suggestion instead. Stefan -Original Message- From: R. Michael Weylandt [mailto:michael.weyla...@gmail.com] Sent: Thu 1/12/2012 9:05 PM To: Schreiber, Stefan Cc: Marc Schwartz; r-help@r-project.org; manu79 Subject: Re

[R] for loop problem

Hi all, I was wondering if you can help me with the following situation: I have a data frame that includes weather station data for 30 years in the form: YEAR, MONTH, DAY, TEMP 1970, 01, 01, -15 ... 1999, 12, 31, -21 I would like to add another variable "JULIAN" that assigns the integers 1 to 3

Re: [R] for loop problem

That's it. Nice and easy :) Thanks! Stefan -Original Message- From: Tyler Rinker [mailto:tyler_rin...@hotmail.com] Sent: Mon 4/30/2012 6:40 PM To: Schreiber, Stefan; r-help@r-project.org Subject: RE: [R] for loop problem I don't really work with dates but thought I'd pass

[R] Why horizontal bars instead of a line

Hey list! It looks simple, though it's not possible for me to plot the following properly: (some made-up data) GrSeClone1 Clone2 Clone3 Clone4 Clone... G1999 2 3 6 5 G2000 2 5 7 4 G2001 5 3 7 3 G2002 4 5 8 3

Re: [R] Why horizontal bars instead of a line

--Original Message- From: Greg Snow [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 24, 2008 12:06 PM To: Schreiber, Stefan; r-help@r-project.org Subject: RE: Why horizontal bars instead of a line Remember that computers are not as smart as you. Some smart people have written instructio

[R] shifting ticks to left or right

Hey list, Does anybody knows a command to centre the tick mark labels exactly between the tick points (right shift)? And then to exclude the last tick label on the right? I know one can shift them using the 'hadj' option in par. But I am wondering if there is a more convenient command! Thanks a

Re: [R] shifting ticks to left or right

Thank you very much! That's the way to go! Cheers, Stefan -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Wednesday, October 01, 2008 10:52 AM To: Schreiber, Stefan Cc: r-help@r-project.org; [EMAIL PROTECTED] Subject: Re: [R] shifting ticks to left or

[R] combining bar and line plots with multiple axes

Hey list, I have a barplot with a line plot overlayed (on the 2nd y axis) and it looks fine except that the origin (0) on the 2nd y axis (side=4) is not lining up with the origin on the 1st y-axis (side=2, from the barplot). Is there a way to either shift the 2nd y-axis (line plot) down or readj

[R] save single image when using plot(lm(y~x))

Dear List! When I'm using "plot(lm(y~x))" R shows me 4 different plots. They pop-up individually by clicking on the graph. How can I save for example the 2nd plot? I've found a camera button that says "copy to the clipboard as a metafile" once you place the mouse pointer on it. I tried, though it

Re: [R] save single image when using plot(lm(y~x))

Woohoo! Thanks a lot Juliet! Stefan -Original Message- From: Juliet Hannah [mailto:[EMAIL PROTECTED] Sent: Friday, November 28, 2008 2:42 PM To: Schreiber, Stefan Cc: r-help@r-project.org Subject: Re: [R] save single image when using plot(lm(y~x)) Try: mylm <- plot(lm(y~x)) plot(m

Re: [R] save single image when using plot(lm(y~x))

Thanks Paul!! I wasn't aware of the command "plot.lm". Therefore, I couldn't find the help-file either. Cheers, Stefan -Original Message- From: Paul Hiemstra [mailto:[EMAIL PROTECTED] Sent: Friday, November 28, 2008 5:10 PM To: Juliet Hannah Cc: Schreib