Nothing
binaryCount <- function(nodes, leafValues) {
nL <- length(leafValues)
nN <- nrow(nodes)
left <- nodes[,1]; right <- nodes[, 2]
left <- ifelse(left<0, -left, left + nL)
right <- ifelse(right<0, -right , right + nL)
count <- c(leafValues, rep(NA, nN))
while(any(is.na(count)))
count <- c(leafValues, count[left] + count[right])
count[-seq(length=nL)]
}
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