OptHoldoutSize (version 0.1.0.1)

aspre_k2: Cost estimating function in ASPRE simulation

Description

Estimate cost at a given holdout set size in ASPRE model

Usage

aspre_k2(
  n,
  X,
  PRE,
  seed = NULL,
  pi_PRE = 1426/58974,
  pi_intervention = 0.1,
  alpha = 0.37
)

Value

Estimated cost

Arguments

n

Holdout set size at which to estimate k_2 (cost)

X

Matrix of predictors

PRE

Vector indicating PRE incidence

seed

Random seed; set before starting or set to NULL

pi_PRE

Population prevalence of PRE if not prophylactically treated. Defaults to empirical value 1426/58974

pi_intervention

Proportion of the population on which an intervention will be made. Defaults to 0.1

alpha

Reduction in PRE risk with intervention. Defaults to empirical value 0.37

Examples

# Simulate
set.seed(32142)

N=1000; p=15
X=matrix(rnorm(N*p),N,p); PRE=rbinom(N,1,prob=logit(X%*% rnorm(p)))
aspre_k2(1000,X,PRE)