R help - Jul 2006 - Access values in kpssstat-class

Hi,
   
  How can I access the Values stored in kpssstat-class given by KPSS.test
function and store it in a variable.
   
  For example:
   
  >x <- rnorm(1000)
  >test  <- KPSS.test(ts(x))
  >test
    ---- ----
  KPSS test
  ---- ----
    Null hypotheses: Level stationarity and stationarity around a linear trend.
  Alternative hypothesis: Unit root.
----
  Statistic for the null hypothesis of 
   level stationarity: 0.138 
      Critical values:
    0.10  0.05 0.025  0.01
 0.347 0.463 0.574 0.739
----
  Statistic for the null hypothesis of 
   trend stationarity: 0.038 
      Critical values:
    0.10  0.05 0.025  0.01
 0.119 0.146 0.176 0.216
----
  Lag truncation parameter: 7 

  then store the test stat values in some variable say - result
   
  Thanx in advance.
   
   

 		
---------------------------------


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Have you tried 'str(test)'?  This tells me it is "Formal class 
'kpssstat' [package "uroot"] with 5 slots".  I can access
the slot
'ltrunc' and the component 'rank' of the 'lmkpss' slot
as follows:

 > test at ltrunc
[1] 7
 > test at lmkpss$rank
[1] 2

	  Hope this helps.
	  Spencer Graves
p.s.  I'm not familiar with the 'KPSS.test'.  I used 
RSiteSearch("KPSS.test", "functions") to find it was in
package 'uroot'.

Sachin J wrote:
> Hi,
>    
>   How can I access the Values stored in kpssstat-class given by KPSS.test
function and store it in a variable.
>    
>   For example:
>    
>   >x <- rnorm(1000)
>   >test  <- KPSS.test(ts(x))
>   >test
>     ---- ----
>   KPSS test
>   ---- ----
>     Null hypotheses: Level stationarity and stationarity around a linear
trend.
>   Alternative hypothesis: Unit root.
> ----
>   Statistic for the null hypothesis of 
>    level stationarity: 0.138 
>       Critical values:
>     0.10  0.05 0.025  0.01
>  0.347 0.463 0.574 0.739
> ----
>   Statistic for the null hypothesis of 
>    trend stationarity: 0.038 
>       Critical values:
>     0.10  0.05 0.025  0.01
>  0.119 0.146 0.176 0.216
> ----
>   Lag truncation parameter: 7 
> 
>   then store the test stat values in some variable say - result
>    
>   Thanx in advance.
>    
>    
> 
>  		
> ---------------------------------
> 
> 
> 	[[alternative HTML version deleted]]
> 
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