private void SetFloatInfo(string field, float[] floatInfo)
{
ulong len = (ulong)floatInfo.Length;
int output = XGBoostNative.XGDMatrixSetFloatInfo(_handle, field, floatInfo, len);
if (output == -1)
{
throw new DllFailException(XGBoostNative.XGBGetLastError());
}
}