coxph-utils: Extract LRS or p-values from coxph object
In drmjc/mjcstats: MJC's general statistics library

Description Usage Arguments Details Value Note Author(s) Examples

Extract LRS or p-values from coxph object

  lrt.coxph(x, digits = options()$digits, ...)

  lrt_pvalue.coxph(x, digits = options()$digits, ...)

  coef_pvalue.coxph(x, digits = options()$digits, ...)

`x`	a coxph object
`digits`	the number of digits to print
`...`	currently unused

lrt.coxph: Extract the log ratio test statistic from the overall Cox Proportional-hazards model fit.

lrt_pvalue.coxph: Extract the log ratio test Pvalue from the overall Cox Proportional-hazards model fit.

coef_pvalue.coxph: Extract the pvalue from each coefficient in x

lrt.coxph: numeric(1), the Likelihood ratio test statistic

lrt_pvalue.coxph: numeric(1), the p-value from the Likelihood ratio test statistic

coef_pvalue.coxph: numeric: the p-value from each coefficient in the coxph object

Code derived from the survival:::print.coxph method

Mark Cowley, 2011-09-02

# lrt.coxph
## Not run: 
 cph.res <- coxph(Surv(...) ~ a)
	lrt.coxph(cph.res)
	lrt_pvalue.coxph(cph.res)
 # [1] 0.0197
	coef_pvalue.coxph(cph.res)

## End(Not run)