Strategies accepted by TimeSeries.fill(strategy, options?) and the partitioned variant series.partitionBy(col).fill(...).
TimeSeries.fill(strategy, options?)
series.partitionBy(col).fill(...)
'hold'
'bfill'
'linear'
'zero'
0
Strategies accepted by
TimeSeries.fill(strategy, options?)and the partitioned variantseries.partitionBy(col).fill(...).'hold'— forward fill: carry the most recent known value forward.'bfill'— backward fill: use the next known value.'linear'— time-interpolated; numeric only. Leading and trailing null runs are left unfilled (no neighbor on one side).'zero'— fill with0.