// toInternalForScores converts a feature vector to internal format. It requires read lock for intern.
func (v FeatureVector) toInternalForScores(intern *intern.Intern) (fVectorForScores, error) {
ret := make(fVectorForScores, 0, len(v))
err := nested.Flatten(data.Map(v), func(key string, value float32) {
if d := intern.GetOrZero(key); d != 0 {
ret = append(ret, fElement{dim(d), value})
}
})
if err != nil {
return nil, err
}
return ret, nil
}
