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#' @importFrom stats as.formula
.as.survival.coxph.model <- function(model) {
coefs <- model$coefficients_table
df <- length(coefs$names)
list(coefficients = structure(coefs$coefficients, names = coefs$names),
var = model$var_coef,
loglik = c(model$null_loglik, model$loglik),
score = model$score_test,
iter = model$iter,
method = model$ties,
n = model$n,
nevent = model$total_event,
wald.test = structure(model$wald_test,
names = if (df == 1L) coefs$names else NULL),
call = as.formula(model$formula))
}
#' @importFrom stats as.formula pchisq
.as.survival.coxph.summary <- function(model) {
coefs <- model$coefficients_table
df <- length(coefs$names)
summary <- list(
call = as.formula(model$formula),
n = model$n,
loglik = model$loglik,
nevent = model$total_event,
concordance = model$concordance,
coefficients = structure(cbind(coefs$coefficients,
coefs$exp_coef,
coefs$se_coef,
coefs$z_coef,
1 - pchisq(coefs$z_coef^2, 1)),
dimnames = list(coefs$names,
c("coef", "exp(coef)", "se(coef)", "z", "Pr(>|z|)"))),
conf.int = NULL,
logtest = c(test = model$loglik_test,
df = df,
pvalue = 1 - pchisq(model$loglik_test, df)),
sctest = c(test = model$score_test,
df = df,
pvalue = 1 - pchisq(model$score_test, df)),
rsq = c(rsq = model$rsq,
maxrsq = model$maxrsq),
waldtest = c(test = model$wald_test,
df = df,
pvalue = 1 - pchisq(model$wald_test, df)),
used.robust = FALSE)
new("H2OCoxPHModelSummary", summary = summary)
}
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