Could a parameter maxfill be added to na.fill

[jaynewton]

Could a parameter maxfill be added to nafill? maxfill is an integer. When the number of consecutive NA values filled downward by a non-NA value exceeds maxfill, the filling stops until the next non-NA value appears. This is practical in time series processing, as overly old historical data is not suitable for continued filling.

[ben-schwen]

Hi Jay. Thanks for the propsal, the idea seems good and we can easily keep existing behavior with maxfill=Inf as default.

Regarding the naming, both zoo and imputeTS use a maxgap parameter for this, while pandas has the limit parameter.