[R] extract p-value from urppTest

[Spencer Graves]

	  If you would still like a reply to this post, please provide a 
simple, self-contained example illustrating the problem you want to 
solve (as suggested in the posting guide 
"www.R-project.org/posting-guide.html"). I didn't find one in your email 
nor in the 'urppTest' help file nor in another place I looked.  Please 
also include the output of "sessionInfo".  Also, please confirm (or 
correct) the impression that you are trying to use the "urppTest" in the 
fSeries package;  without that information, it is not immediately 
obvious what you are talking about.

	  Sorry I couldn't help more.
	  Spencer Graves

Anne Katrin Heinrichs wrote:
> Dear List,
> 
> How do I pick the p-value out of the urppTest result?
> 
> For adfTest the p-value can be extracted by
> 
>   A2 at test$p.value
> 
> following
> 
>   A2 <- adfTest(myData[,i], lags=2, type=c("c"))
> 
> What do I do for urppTest? The above doesn't seem to work. There is a slot @test with
> $output, which is a list of various test results that didn't want to give away only the
> p-value (I'm fairly new to R, so this might well be my fault). 
> 
> I thought I had found a way around this by
> 
>  # dissolve testresult into lines
> 	listasvectors <- unlist(P1 at test$output)
> 
>  # pick the line containing p-value
>       getpvalue <- unlist(strsplit(listasvectors[17], " "))
> 
>  # isolate the p-value (number only)
> 	getpvalue[14]
> 
> However, I'm doing this in a loop and it seems for each test result there is a different
> number of entries or seperators " ". For example, "<" sometimes ends up being displayed as
> the p-value.
> 
> I'd be very happy about any help on how to extract the p-value.
> 
> Thanks,
> Katrin
> 
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