The fits for time series using LASSO and random forests for Rm = 1.5 × 10⁴. Just like the fits for spatial data in Fig. 3, we find that LASSO does considerably better than random forests, the latter of which again has a step like shape. Left: we show the time series only up to the kinematic phase (∼0.01 resistive times) with the inset describing the train/test split. Right: time series is between kinematic and saturation phases. LASSO seems to capture the shape of the curve but is offset. In both cases, random forest prediction returns a nearly horizontal line, characteristic of decision tree regression. The black vertical dashed line presents the train-test split (80% training data).