psm
to proportional hazards form, if the fitted model was
a Weibull or exponential model (extreme value distribution with
"log" link).
pphsm(fit) ## S3 method for class 'pphsm': print(x, correlation=TRUE, ...)
psm
psm
FALSE
to suppress printing of
correlation matrix of parameter estimates
Frank Harrell
Department of Biostatistics
Vanderbilt University
f.harrell@vanderbilt.edu
set.seed(1) S <- Surv(runif(100)) x <- runif(100) dd <- datadist(x); options(datadist='dd') f <- psm(S ~ x, dist="exponential") summary(f) # effects on log(T) scale f.ph <- pphsm(f) summary(f.ph) # effects on hazard ratio scale options(datadist=NULL)