[Rd] PSM function in Design package (PR#6525)

[volontir at yahoo.com]

Full_Name: Oleg Raisky
Version: 1.8.1
OS: Windows 2000
Submission from: (NULL) (63.246.203.107)


This is a completely fresh R install. I'm trying to use Design package. Every
time I run the first example for psm() I'm getting an error <<couldn't find
function "survreg.fit">>.  However, survreg.fit does exists in the search path.
Is there something I can do to fix this?

Thanks a lot,

Oleg

 Running example for psm()

>      n <- 400
>      set.seed(1)
>      age <- rnorm(n, 50, 12)
>      sex <- factor(sample(c('Female','Male'),n,TRUE))
>      dd <- datadist(age,sex)
>      options(datadist='dd')
>      # Population hazard function:
>      h <- .02*exp(.06*(age-50)+.8*(sex=='Female'))
>      d.time <- -log(runif(n))/h
>      cens <- 15*runif(n)
>      death <- ifelse(d.time <= cens,1,0)
>      d.time <- pmin(d.time, cens)
> 
>      f <- psm(Surv(d.time,death) ~ sex*pol(age,2), 
+               dist=if(.R.)'lognormal' else 'gaussian')
Error in psm(Surv(d.time, death) ~ sex * pol(age, 2), dist = if (.R.)
"lognormal" else "gaussian") :   couldn't find function "survreg.fit"
> 

Here is my search() output

 search()
 [1] ".GlobalEnv"           "package:Design"       "package:Hmisc"       
 [4] ".GlobalTemp"          "package:MASS"         "package:gregmisc"    
 [7] "package:grid"         "package:RColorBrewer" "package:tools"       
[10] "package:vcd"          "package:lattice"      "package:methods"     
[13] "package:ctest"        "package:mva"          "package:modreg"      
[16] "package:nls"          "package:ts"           "package:RODBC"       
[19] "package:survival"     "Autoloads"            "package:base"