DataArray.ffill(dim, limit=None)[source]

Fill NaN values by propogating values forward

Requires bottleneck.

  • dim (hashable) – Specifies the dimension along which to propagate values when filling.

  • limit (int, default: None) – The maximum number of consecutive NaN values to forward fill. In other words, if there is a gap with more than this number of consecutive NaNs, it will only be partially filled. Must be greater than 0 or None for no limit. Must be None or greater than or equal to axis length if filling along chunked axes (dimensions).