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mindsdb / lightwood

Lightwood is Legos for Machine Learning.
GNU General Public License v3.0
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[ENH] Improve `transform_timeseries` #1164

Closed StpMax closed 1 year ago

StpMax commented 1 year ago

Apply .astype to part of array is much slower, then to full array. This little change fix it. Depend on count of groups, speedup of model learn in % is about:

+------+-------+------+
|  50  |  100  | 500  |
+------+-------+------+
| 53.8 | 7.77  | 4.88 |
+------+-------+------+