[R] simple save question

Sarah Goslee sarah.goslee at gmail.com
Wed Jul 13 18:38:43 CEST 2011


Just an observation, since this email has no indication of what you're
trying to get at and I'm not inspired to dig back through the list:

On Wed, Jul 13, 2011 at 11:16 AM, Tom La Bone <booboo at gforcecable.com> wrote:
>
> No cigar. This is what I get and my session info. Any suggestions?
>>
>> library(survival)
>> library(ISwR)
>> dat.s <- Surv(melanom$days,melanom$status==1)
>> fit <- survfit(dat.s~1)
>> print(fit, print.rmean=TRUE)
> Call: survfit(formula = dat.s ~ 1)
>
>   records      n.max    n.start     events     *rmean *se(rmean)     median
>       205        205        205         57       4125        161         NA
>   0.95LCL    0.95UCL
>        NA         NA
>    * restricted mean with upper limit =  5565
>> sfit <- summary(fit)
>> sfit$table[5]
> median
>    NA

print(fit, print.rmean=TRUE)
is not the same thing as
summary(fit)

> names(summary(fit)$table)
[1] "records" "n.max"   "n.start" "events"  "median"  "0.95LCL" "0.95UCL"

shows that element 5 is the median, which is NA for your data as shown
in your own output.

You need to dig into the rmean option to summary.survfit to get it to
export the value (I think) you want.

Sarah

-- 
Sarah Goslee
http://www.functionaldiversity.org



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