[R] R News, volume 7, issue 1 is now available --error in AMMI article

[John Fox]

Dear Yuandan,

The function definition given in the article doesn't produce an error for
me.

Regards,
 John

--------------------------------
John Fox, Professor
Department of Sociology
McMaster University
Hamilton, Ontario
Canada L8S 4M4
905-525-9140x23604
http://socserv.mcmaster.ca/jfox 
-------------------------------- 

> -----Original Message-----
> From: Lux Zhang [mailto:yuanlux at gmail.com] 
> Sent: Thursday, April 26, 2007 7:56 AM
> To: John Fox
> Cc: R-help
> Subject: Re: [R] R News, volume 7,issue 1 is now available 
> --error in AMMI article
> 
> 
> 
> On 26/04/07, Lux Zhang <yuanlux at gmail.com> wrote:
> 
> 
> 
> 	On 26/04/07, John Fox <jfox at mcmaster.ca > wrote:
> 
> 		Dear Yuandan,
> 		
> 		My attention was drawn by your claim of an 
> "error in AMMI article."
> 		
> 		As you say, the code for the AMMI function is 
> given directly in the article.
> 		If the argument biplot is equal to 1, then a 
> biplot is drawn by the 
> 		function, as is apparent from the section of 
> code labelled "## 5 - Biplots."
> 		
> 		Why is this an error?
> 
> 
> 
> 	when loading this AMMI function, at the line "if 
> (biplot == 1) { ", R seems treating the 'biplot' as a 
> subject, the biplot function from stats package, inseatd of 
> treating it as argument for the AMMI function. 
> 	
> 	
> 	here is the error messenge when I load it
> 	
> 	> source ("AMMI.R")
> 	Error in parse(file, n = -1, NULL, "?") : syntax error at
> 	51: ( bplot == 1 ) {
> 	52:     plot(1, type = 
> 
> 
> Sorry, I had another look, it seems something to do with plot 
> (1, type = 'n' ... [ i copy this code from the pdf file]
> 
> after change it to 
> 
> plot (1, type = "n" ... as below 
> 
>   if ( biplot == 1 ) {
>     plot(1, type = "n", xlim = range(c(envir.mean, 
> var.mean)), ylim = range(c(E[,1], G[,1])), xlab = "Yield",
> 
> lt was loaded. 
> 
> 
> 
>  
> 
> 
> 	
> 
> 		Regards,
> 		John
> 		
> 		-------------------------------- 
> 		John Fox, Professor
> 		Department of Sociology
> 		McMaster University
> 		Hamilton, Ontario
> 		Canada L8S 4M4
> 		905-525-9140x23604
> 		http://socserv.mcmaster.ca/jfox 
> <http://socserv.mcmaster.ca/jfox> 
> 		-------------------------------- 
> 		
> 		> -----Original Message-----
> 		> From: r-help-bounces at stat.math.ethz.ch
> 		> [mailto: r-help-bounces at stat.math.ethz.ch ] 
> On Behalf Of Lux Zhang
> 		> Sent: Thursday, April 26, 2007 1:38 AM
> 		> To: R-help; r-anounce at stat.math.ethz.ch 
> 		> Subject: Re: [R] R News, volume 7,issue 1 is 
> now available 
> 		> --error in AMMI article
> 		>
> 		> Hi,
> 		>
> 		> In this newsletter (Vol 7, 1),the article on 
> AMMI by Onofri
> 		> and Ciriofolo presented a AMMI function.  One 
> of arguments
> 		> for this function AMMI (Page 
> 		> 17) is biplot. There is a biplot fucntion 
> from  {stats}
> 		> package.  I guess they are not the same. 
> Could the authors
> 		> clarify that?
> 		>
> 		> Thanks,
> 		>
> 		> Yuandan
> 		>
> 		>       [[alternative HTML version deleted]] 
> 		>
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> 		>
> 		
> 		
> 		
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> 
> 
>