// Get the importance of a feature.
public unsafe double[] GetFeatureImportance(int numIteration, ImportanceType importanceType)
{
// Get the number of features
int cnt = this.NumFeatures;
double[] res = new double[cnt];
fixed (double* ptr = res)
PInvokeException.Check(PInvoke.BoosterFeatureImportance(Handle, numIteration, (int)importanceType, ptr),
nameof(PInvoke.BoosterFeatureImportance));
return res;
}
