From 0c7e4c96bc59ed76f7f90e5964ad6b6c7ab7f6b7 Mon Sep 17 00:00:00 2001
From: Koichi Akabe <vbkaisetsu@gmail.com>
Date: Thu, 28 Dec 2023 16:52:16 +0900
Subject: [PATCH] Use f32::NAN as a missing value

---
 src/dmatrix.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/dmatrix.rs b/src/dmatrix.rs
index f29b5d0..212b8b7 100644
--- a/src/dmatrix.rs
+++ b/src/dmatrix.rs
@@ -112,7 +112,7 @@ impl DMatrix {
         xgb_call!(xgboost_sys::XGDMatrixCreateFromMat(data.as_ptr(),
                                                       num_rows as xgboost_sys::bst_ulong,
                                                       (data.len() / num_rows) as xgboost_sys::bst_ulong,
-                                                      0.0, // TODO: can values be missing here?
+                                                      f32::NAN,
                                                       &mut handle))?;
         Ok(DMatrix::new(handle)?)
     }