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On 9/29/2017 3:37 PM, Rolf Turner wrote: > On 30/09/17 07:45, JLucke at ria.buffalo.edu wrote: > > <SNIP> > >> >> The conceptual paradigm for R is only marginally commensurate with >> that of >> standard statistical software. >> You must immerse yourself in R to become proficient. > > Fortune nomination. For newer...

....stat.cmu.edu/R/CRAN/bin/windows/contrib/2.9/rjags_1.0.3-10.zip' Content type 'application/zip' length 308968 bytes (301 Kb) opened URL downloaded 301 Kb package 'rjags' successfully unpacked and MD5 sums checked The downloaded packages are in C:\Documents and Settings\jlucke\Local Settings\Temp\RtmpRAkMZy\downloaded_packages updating HTML package descriptions BUT, > library(rjags) Error in fun(...) : Failed to locate JAGS 1.0.3 installation Error : .onLoad failed in 'loadNamespace' for 'rjags' Error: package/namespace load failed for 'rjags...

I read somewhere that t.test is equivalent to a hypothesis testing for one way ANOVA. But I'm wondering how they are equivalent. In the following code, the p-value by t.test() is not the same from the value in the last command. Could somebody let me know where I am wrong? > set.seed(0) > N1=10 > N2=10 > x=rnorm(N1) > y=rnorm(N2) > t.test(x,y) Welch Two Sample t-test data:

What is an easy way to stack a matrix multiple times? E.g. I have a 6x6 matrix that I need to stack vertically 154 times to get a 6*154 by 6 matrix. I would rather not rbind(X,X,...,X) matrices. --Joe [[alternative HTML version deleted]]

On 30/09/17 07:45, JLucke at ria.buffalo.edu wrote: <SNIP> > > The conceptual paradigm for R is only marginally commensurate with that of > standard statistical software. > You must immerse yourself in R to become proficient. Fortune nomination. cheers, Rolf -- Technical Editor ANZJS Department of...

I wish to second this approach to learning R. I tried for several years to translate other stat programs or provide parallel analyses with R. This dabbling-in-R approach did not work . When a transferred to a research unit that could ill afford commercial software, I devoted my entire time to doing everything in R. This was a difficult learning process, but I eventually became proficient

On 01/10/17 01:22, Robert Baer wrote: > > > On 9/29/2017 3:37 PM, Rolf Turner wrote: >> On 30/09/17 07:45, JLucke at ria.buffalo.edu wrote: >> >> <SNIP> >> >>> >>> The conceptual paradigm for R is only marginally commensurate with >>> that of >>> standard statistical software. >>> You must immerse yourself in R to become proficient. >&gt...

I am unable to install the rggobi package. I do not have trouble installing other packages. Any advice or suggestions? >sessionInfo() R version 2.8.1 (2008-12-22) i386-pc-mingw32 locale: LC_COLLATE=English_United States.1252;LC_CTYPE=English_United States.1252;LC_MONETARY=English_United States.1252;LC_NUMERIC=C;LC_TIME=English_United States.1252 attached base packages: [1] stats

guRus: I have a variable "beta" as an argument to R's beta function. So essentially I have a case of beta(alpha, beta). What surprises me is that R doesn't barf on this stupid programming practice. R gets the right answer. How does R know "beta the variable" from "beta the function"? Joseph F. Lucke Senior Statistician Research Institute on Addictions

...es ????? 'Exegeses on Linear Models' paper (May 2000) On Saturday, September 30, 2017, 4:57:23 PM EDT, Rolf Turner <r.turner at auckland.ac.nz> wrote: On 01/10/17 01:22, Robert Baer wrote: > > > On 9/29/2017 3:37 PM, Rolf Turner wrote: >> On 30/09/17 07:45, JLucke at ria.buffalo.edu wrote: >> >> <SNIP> >> >>> >>> The conceptual paradigm for R is only marginally commensurate with >>> that of >>> standard statistical software. >>> You must immerse yourself in R to become proficient. >&gt...

> On 30 Sep 2017, at 14:22 , Robert Baer <rbaer at atsu.edu> wrote: > > > > On 9/29/2017 3:37 PM, Rolf Turner wrote: >> On 30/09/17 07:45, JLucke at ria.buffalo.edu wrote: >> >> <SNIP> >> >>> >>> The conceptual paradigm for R is only marginally commensurate with >>> that of >>> standard statistical software. >>> You must immerse yourself in R to become proficient. >...

The Lattice auto.key argument has a bug in R.12.2. R version 2.12.2 (2011-02-25) Platform: i386-pc-mingw32/i386 (32-bit) .... other attached packages: [1] lattice_0.19-17 loaded via a namespace (and not attached): [1] grid_2.12.2 If I set up my plot parameters as require(lattice) superpose.line.settings <- trellis.par.get("superpose.line") str(superpose.line.settings)

Although I have installed R many times on many machines without problems, I have recently encountered a problem with accessing packages. R has been installed successfully with the "--internet2" option. The session info is below. > sessionInfo() R version 2.8.1 (2008-12-22) i386-pc-mingw32 locale: LC_COLLATE=English_United States.1252;LC_CTYPE=English_United

windows XP R 2.10 As pointed out by Prof. Venables and Ripley (MASS 4th edition, p275), the results obtained from lme using method="ML" and method="REML" are often different, especially for small datasets. Is there any way to determine which method is preferable for a given set of data? Thanks, john John David Sorkin M.D., Ph.D. Chief, Biostatistics and Informatics

Hi Yves lavaan looks like a very nice package. From the tutorial introduction I see you create path diagrams for some of the models you describe. How did you do this? I don't see a function for this in the package. I know there is a path.diagram function in the sem package that uses dot to draw the diagram, but I've always found the layouts from dot somewhat strange for path diagrams

k=lm(y~x) summary(k) returns R^2=0.9994 lm(y~x) is supposed to find coef. a anb b in y=a*x+b l=lm(y~x+0) summary(l) returns R^2=0.9998 lm(y~x+0) is supposed to find coef. a in y=a*x+b while setting b=0 The question is why do I get better R^2, when it should be otherwise? Im sorry to use the word "MS exel" here, but I verified it in exel and it gives: R^2=0.9994 when y=a*x+b is used

This command cdmoutcome<- glm(log(value)~factor(year) > +log(gdppcpppconst)+log(gdppcpppconstAII) > +log(co2eemisspc)+log(co2eemisspcAII) > +log(dist) > +fdiboth > +odapartnertohost > +corrupt > +log(infraindex) > +litrate > +africa >

Hi All, I've been having a little trouble with creating a loop that will run a a series of t.tests for inspection, Below is the code i've tried, and some checks i've looked at. I've used the get(paste()) idea as i was told previously that the use of the eval should try and be avoided. I've run a single syntax to check that my systax is correct and works without any problems