fixcut_sur {BioPred}

Fixed Cutoff Analysis for Individual Biomarker Associated with Survival Outcome

Description

This function conducts fixed cutoff analysis for Individual Biomarker Associated with survival outcome variables.

Usage

fixcut_sur(
  yvar,
  censorvar,
  xvar,
  dir,
  cutoffs,
  data,
  method = "logrank",
  yvar.display = yvar,
  xvar.display = xvar,
  vert.x = FALSE
)

Arguments

yvar

Survival response variable name.

censorvar

Censoring variable. 0 indicates censored, 1 indicates an event.

xvar

Biomarker name.

dir

Cutoff direction for the desired subgroup. Options are ">", ">=", "<", or "<=".

cutoffs

A vector of candidate cutoffs.

data

The dataset containing the variables.

method

Method for cutoff selection. Currently only supports "logrank". - "logrank": Minimizes the logrank test p-value.

yvar.display

Display name of the response variable.

xvar.display

Display name of the predictor variable.

vert.x

Whether to display the cutoff in a 90-degree angle when plotting (saves space).

Value

A list containing statistical summaries, selected cutoff statistics, selected cutoff value, group statistics, and a ggplot object for visualization.