similar to: Creating Observation ID

Hello, This one is very perplexing. I have teacher observation data, with factors teacher ID, observer ID, component, grade and subject. When I do this, aov(data=ratings.prin.22, rating ~ obsid.f + tid.f + subject.f + grade.f + comp.f) I get this: Terms: obsid.f tid.f grade.f comp.f Residuals Sum of Squares 306.23399 221.38173 1.70000 14.52831 279.05780 Deg. of

Hi, The problem started when i installed a kodicom 4400 card and started to run zoneminder. Prior to that no problems with my machine, which now runs FreeBSD panix.internal.net 7.0-RELEASE-p3 FreeBSD 7.0-RELEASE-p3 #3: Mon Jul 14 16:35:37 EEST 2008 doroot@panix.internal.net:/usr/obj/usr/src/sys/GENERIC i386 This hardware change happened in Sunday Jul 13. The next day (Jul 14) morning

Hi, I am relatively new to R and I am trying to figure out how to select rows of my data based on a condition. For example in the dataset below multiple observers recorded data at the same point on the same date and the data was recorded on separate rows, but I only need one of the rows of data. Is it possible to use grep to search for rows that have matching PtName and Date and then select the

Hi all, I have a problem when running lmer. In my data set, Agree is a binary(0/1) response. WalkerID and ObsID is the identification number of the subjects. the description of the other variables are as follows: > levels(regdat$Display) [1] "Dynamic" "Static" > levels(regdat$Survey) [1] "HM1_A" "HM1_B" "HM1_C" "HM2_A"

Dear R-devel mailing list, I am wondering whether the "theta" and "phi" parameters of the "persp" function in the graphics commands are named in error (the names seem to have been swapped). Also, in the documentation to "persp", reference is made to "colatitude" when the effect in the image is actually that of "latitude". Thank you,

I got the following: > library(foreign) > swal = read.spss("swallowing.sav", to.data.frame =TRUE) Warning message: In read.spss("swallowing.sav", to.data.frame = TRUE) : swallowing.sav: Unrecognized record type 7, subtype 21 encountered in system file > The bulk of the data seems to read in a usable form, but I'm curious about what might be getting lost

Hi, I created a function for obtaining the normal cumulative distribution (I know all this already exists in R, I just wanted to verify my understanding of it). below is the code I came up with. cdf<-function(x) { erf<-function(x) { # approximation to the error function (erf) of the # normal cumulative distribution function # from Winitzki

Dear R-helpers, In my dataset I have two continuous variable (A and B) and one factor. I'm investigating the regression between the two variables usign the command lm(A ~ B, ...) but now I want to know the regression coefficient (r2) of A vs. B for every factors. I know that I can obtain this information with excel, but the factor have 68 levels...maybe [r] have a useful command. Thanks,

Is there an easy way to make the error bars the same color as the points and lines they are plotted with. My example # fake data x=sample(1:10, 100, replace =T) y = rnorm(100) + runif(100) df=data.frame(x,y) # summarize data m = aggregate(df,list(x),mean) se = aggregate(df,list(x),sd)/sqrt(10) library(Hmisc) plot(x,y) errbar(m$x, m$y, m$y+1.96*se$y,

In following a thread on this mailing list, I encounter an apparent issue with **Edit | Paste commands only** in the Windows R-GUI. Reproducible steps: Go to (using IE?): http://www.r-bloggers.com/select-operations-on-r-data-frames/ Find the section entitled 'Duplicate row names' Copy the following lines from the web page < a = matrix(1:18, nrow=6, ncol=3) < rownames(a) <-

Since upgrading to 2.12.0, I'm having trouble getting the JGR to start under Windows 7, but I'm not quite sure what's happening. When I try to run the JGR.exe stub, the dialog says can't find Java R interface jri.dll. As nearly as I can tell from a Google search this is to be a part of the rJava package which seems to load fine with the library(rJava) command from the Windows R

John (to a serial querulant): ...but with such a sweeping lack of information from you, don't congratulate yourself if you get a helpful answer. It wasn't your fault. David Winsemius Alameda, CA, USA 'Any technology distinguishable from magic is insufficiently advanced.' -Gehm's Corollary to Clarke's Third Law

Hi everyone, i am trying to group close numbers in a vector. For example i have a vector x = [1 2 4 7 9 10 15]. I want the code to pick 1 2 4 (max difference between successive numbers is 2) and assign them to variable a, then pick 7 9 10 and assign them to b and 15 to c. But since i do not know how many groups there will be the code should create a,b,c etc as it goes along. So if x = [1 2 4 7 9

Dear Sir, I am writing to inquire about normality test given in nortest package. I have a random data set consisting of 300 samples. I am curious about which normality test in R would give me precise measurement, whether data sample is following normal distribution. As p value in each test is different in each test, if you could help me identifying a suitable test in R for this medium size of

Hi all, I attach a picture, with my output plot. I put this command to obtain it: hist(MCT[,2],probability=TRUE,xlab=" ",ylab="Max",main="M distribution") lines(density(MCT[,2]), lwd = 2) The problem is that when I extract the "bell" is too high? And the higher part doesn?t appear in the plot. There is some trick to adjust the line on the plotted area?

I've installed Rcmdr package and it doesn't run Here is the error message: R version 2.9.2 (2009-08-24) [R.app GUI 1.29 (5464) powerpc-apple-darwin8.11.1] [Workspace restored from /Users/jfc/Documents/TravauxFR/.RData] Le chargement a n?cessit? le package : tcltk Chargement de Tcl/Tk... termin? Le chargement a n?cessit? le package : car Error in

Hello everyone, if I have: x=1:10 y=1:10 plot(x,y) and I plot a rectangle rect(4,0,6,11, col=5) it covers the points of the graph. Is there a way to draw the rectangle under the points? I was thinking the a solution could be draw an empty plot then draw the rectangle and after the points, but it did not work. Any idea? thanks for your help H. [[alternative HTML version deleted]]

Hello, How is it possible to sort dates in R? Cheers, Carol

Hello R-help   I am trying to copy and paste large column of data from windows Excel into R base speed sheet using:   Data1<-edit(data.frame())   But I can only copy and paste one cell at a time which is time consuming.   Also how can assign each column to a variable. [[alternative HTML version deleted]]

I recently updated all my plugins, and for the fun of it, I added ALL the Rcmdr Plugins to my collection to see what functionality might exist. I started Rcmdr and loaded ALL the available Plugins from to the Rcdmdr Tools menu. To my suprise Rcmdr produced a number of warnings and finally an error. The error suggests that some of the extensions are incompatable with each other because of menu