[R] Looking for a collaborator

I'm looking for a collaborator with strong R debugging skills to work on a project involving symmetric permutations. Should have interest in permutation/randomization methods. Please reply directly to me and not to the list. Phillip Good for background, see http://tbf.coe.wayne.edu/jmasm

Re: [R] Lack of independence in anova()

Do you or Lumley have a citation for this conclusion? Most people go forward with the ANOV on the basis that the various tests are independent. Phillip Good P.S. Tests based on the method of synchronized permutations are independent. -Original Message- From: Douglas Bates [mailto

Re: [R] Lack of independence in anova()

spencer graves asks: How is the method of synchronized permutations relevant to a traditional, normal theory ANOVA? One ought now ask as I am doing currently whether traditional, normal theory ANOVA is applicable to the analysis of experimental designs. If in fact, the results of the various

[R] Interpreting ANOV output

). if neither row nor column nor interaction effects are significant, I'll attribute the result to too small a sample. (As far as higher-order interactions go, I never really had a clue as to what they were about anyway.) Phillip Good __ R-help

[R] Lack of independence in anova()

(ssize)) } #Example size=c(3,3,3,0,3,3,3,0) sim2(size,1,10,.16) Phillip Good Huntington Beach CA __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org

Re: [R] Lack of independence in anova()

Subject: Re: [R] Lack of independence in anova() I have already had email exchanges off-list with Phillip Good pointing out that the independence property that he wishes to establish by simulation is a consequence of orthogonality of the column span of the row contrasts and the interaction

Re: [R] Lack of independence in anova()

of the p-values is uniform over the unit cube. On 7/4/05, Phillip Good [EMAIL PROTECTED] wrote: If the observations are normally distributed and the 2xk design is balanced, theory requires that the tests for interaction and row effects be independent. In my program, appended below, this would

[R] Help with brain surgery

clean up the mess afterwards and if the first one won't, there's always another more helpful fellow down the hall. P.S. If you can’t find a brain surgeon who can help you—they can be a bit stuffy sometimes, consult a helpful gynecologist or proctologist with an interest in the area. Phillip

[R] How does the lm() function work?

Does the lm() function use forward, backward, stepwise or some other method of multivariable regression? Where can I look up the details? Phillip Good [[alternative HTML version deleted]] __ [EMAIL PROTECTED] mailing list https

Re: [R] How does the lm() function work?

Thank you. I'll install the MASS library. - Original Message - From: Roger D. Peng [EMAIL PROTECTED] To: Phillip Good [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Sent: Friday, May 07, 2004 7:28 AM Subject: Re: [R] How does the lm() function work? lm() itself does not implement any model

[R] R code for LAD regression and Deming Regression

Before I duplicate effort are there existing programs for computing the coefficients for a) LAD regression b) Deming or Errors-in-Variables Regression? Phillip Good [[alternative HTML version deleted]] __ [EMAIL PROTECTED] mailing list https

Re: [R] Help with debugging

When one wishes to return only a single value from a user-developed R function, return is preferable to list. Phillip Good __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http

[R] Help with debugging

Once the IF triggers in the following program, it just won't turn off: #Get p-value from permutation distribution N = 64 cnt = 0 for (i in 1:N){ pdata = sample (data) statp=F1(size,pdata,gmean,samps) if (stat0 = statp ){ cnt=cnt+1 print(i) print (statb)

[R] Help with multiple graphs on one set of axis

Can you suggest code to plot two cumulative distribution functions on the same set of axis? Phillp Good Never trust anything that can think for itself if you can't see where it keeps its brain. Mr. Weasley [[alternative HTML version deleted]]