| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | #ifndef ML_FEATURES_H |
| 4 | #define ML_FEATURES_H |
| 5 | |
| 6 | #include "ml_calculated_number.h" |
| 7 | |
| 8 | #include <vector> |
| 9 | |
| 10 | typedef struct { |
| 11 | size_t diff_n; |
| 12 | size_t smooth_n; |
| 13 | size_t lag_n; |
| 14 | |
| 15 | calculated_number_t *dst; |
| 16 | size_t dst_n; |
| 17 | |
| 18 | calculated_number_t *src; |
| 19 | size_t src_n; |
| 20 | } ml_features_t; |
| 21 | |
| 22 | // Training path: diff + smooth + lag into preprocessed_features. |
| 23 | void ml_features_preprocess(ml_features_t *features, std::vector<DSample> &preprocessed_features, double sampling_ratio); |
| 24 | |
| 25 | // Prediction path: diff + smooth, then fill a single DSample from the first lag_n+1 values. |
| 26 | void ml_features_preprocess_predict(ml_features_t *features, DSample &sample); |
| 27 | |
| 28 | #endif /* ML_FEATURES_H */ |