R help - Sep 2006 - Need help with dataset formation problem

Hi, 
    I have a data set , say, X  :      [1]    [2]
                                         mean      0      .8
                                             sd        1       3
    
     I need to use it in do.call() ,   so when I refer to the first col of X, I
need it to be a list with members mean, sd.
thus I constructed X as a list of list :  X[[1]]<- list(mean=0, sd=1),  
X[[2]]<-.....    .  But this dataset is useless in other
cases, for example, I can't pull out all the means as a vector.    
     Can I get some suggestions on what's the best way to handle it? (except
preparing two copies of this data with different formats)

Thanks a lot in advance. 

best

Tong Wang wrote:
> Hi, I have a data set , say, X  :      [1]    [2] mean      0      .8
>  sd        1       3
> 
> I need to use it in do.call() ,   so when I refer to the first col of
> X, I need it to be a list with members mean, sd. thus I constructed X
> as a list of list :  X[[1]]<- list(mean=0, sd=1),   X[[2]]<-.....
> .  But this dataset is useless in other cases, for example, I can't
> pull out all the means as a vector. Can I get some suggestions on
You can:

sapply(X, "[[", 1)

Uwe Ligges
> what's the best way to handle it? (except preparing two copies of
> this data with different formats)
> 
> Thanks a lot in advance.
> 
> best
> 
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