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[R] Fix xgb.model.dt.tree in case where all leaves are negative (#10798)

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jonibr22 2024-09-24 04:02:33 +07:00 committed by GitHub
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commit 215da76263
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R-package/R/xgb.model.dt.tree.R
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@ -89,7 +89,7 @@ xgb.model.dt.tree <- function(model = NULL, text = NULL,
from_text <- FALSE
}
if (length(text) < 2 || !any(grepl('leaf=(\\d+)', text))) {
if (length(text) < 2 || !any(grepl('leaf=(-?\\d+)', text))) {
stop("Non-tree model detected! This function can only be used with tree models.")
}