R Under development (unstable) (2024-07-17 r86903 ucrt) -- "Unsuffered Consequences"
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> 
> library("partykit")
Loading required package: grid
Loading required package: libcoin
Loading required package: mvtnorm
> 
> n <- 100
> x <- runif(n)
> y <- rnorm(n, mean = sin(x), sd = .1)
> s <- gl(4, n / 4)
> 
> set.seed(29)
> ### estimate with honesty
> cf_ss <- cforest(y ~ x, strata = s, ntree = 5, mtry = 1,
+                  perturb = list(replace = FALSE, fraction = c(.5, .5)))
> ### sample used for tree induction
> stopifnot(sum(tapply(cf_ss$weights[[1]], s, sum)) == n / 2)
> ### sample used for parameter estimation
> stopifnot(sum(tapply(cf_ss$honest_weights[[1]], s, sum)) == n / 2)
> 
> p <- predict(cf_ss)
> 
> set.seed(29)
> ### w/o honesty
> cf_ss2 <- cforest(y ~ x, strata = s, ntree = 5, mtry = 1,
+                   perturb = list(replace = FALSE, fraction = .5))
> 
> stopifnot(sum(tapply(cf_ss2$weights[[1]], s, sum)) == n / 2)
> 
> # random diffs also on other platforms
> #if (.Platform$OS.type != "windows")
> #    stopifnot(all.equal(cf_ss$nodes, cf_ss2$nodes))
> stopifnot(all.equal(cf_ss$weights, cf_ss2$weights))
> stopifnot(all.equal(predict(cf_ss, type = "node"), 
+                     predict(cf_ss2, type = "node")))
> 
> tmp <- cf_ss2
> tmp$weights <- lapply(tmp$weights, function(x) 1L - x)
> pp <- predict(tmp)
> 
> stopifnot(all.equal(p, pp))
> 
> ### bootstrap ignores honesty
> cf_bs <- cforest(y ~ x, strata = s, ntree = 5,
+               perturb = list(replace = TRUE, fraction = c(.5, .5)))
> 
> stopifnot(sum(tapply(cf_bs$weights[[1]], s, sum)) == n)
> stopifnot(is.null(cf_bs$honest_weights))
> 
> proc.time()
   user  system elapsed 
   1.32    0.31    1.62