Nothing
linearCase <- function(x,
y,
trt,
propen,
wgt,
intercept) {
p <- 1L:{ncol(x)+1L}
n <- length(y)
trtOpts <- sort(unique(trt))
trtOpts <- trtOpts[-1L]
k <- length(trtOpts)
x1 <- cbind(1.0,x) * wgt
y <- y * wgt
xpro <- NULL
for( i in 1L:k ) {
xpro <- cbind(xpro, x1 * {{trt == trtOpts[i]} - propen[,i+1L]})
}
if( intercept ) {
fit <- stats::lm(y ~ x + xpro, data = data.frame(x,xpro,y))$coef
gamma <- fit[p]
beta <- fit[-p]
} else {
fit <- stats::lm(y ~ -1 + x + xpro, data = data.frame(x,xpro,y))$coef
gamma <- 0.0
beta <- fit
}
if( any(is.na(fit)) ) {
stop("NAs encountered in fit of baseline mean function.",
call. = FALSE)
}
AL <- adaptiveLasso(x = x,
y = y,
gamma = gamma,
beta = beta,
propen = propen,
trt = trt,
wgt = wgt)
return(AL)
}
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