[R] Interpretation of p-values, coxph

2011-02-15 Thread Viki S
Hi guys, I have been testing the hypothesis for difference of survival between four different classes. The p-values provided in coxph output are confusing for me to interpret. Here is the output : sur-coxph(Surv(SURVIV, status == 1)~factor(A)+cluster(rownames(d)), data = d, model=TRUE) Call:

[R] Error: object 'short' not found

2010-10-19 Thread Viki S
Hi guys, Can anyone tell me what is the meaning of following command ? paste(execDir,paste(short,myfile,sep=_),sep=\) R gives me an error : Error: object 'short' not found I tried to find help about 'short' in R, but could not find any such function/ object. Viki

[R] Creating named.list from two matrix columns

2010-09-06 Thread Viki S
Hi Friends, I am new to R. On R utility class pages, creating named.list is described with this command : new(named.list,a=1,b=2) For large matrix having two columns, such as : row1 2334 row2 347 row3 379 ... I want to create a named.list like : $row1 [1] 2334 $row2 [1] 347 ... Can

Re: [R] Creating named.list from two matrix columns

2010-09-06 Thread Viki S
347 3 row3 379 x.list - as.list(x$V2) names(x.list) - x$V1 x.list $row1 [1] 2334 $row2 [1] 347 $row3 [1] 379 On Mon, Sep 6, 2010 at 7:55 AM, Viki S is...@live.com wrote: Hi Friends, I am new to R. On R utility class pages, creating named.list is described