Resample the series based on equivalence class on the keys. A specified function `keyProj` is used to project keys to another space and the observations for which the projected keys are equivalent are grouped into chunks. The chunks are then returned as nested series. ## Parameters - `series` - An input series to be resampled - `keyProj` - A function that transforms keys from original space to a new space (which is then used for grouping based on equivalence) ## Remarks This function is similar to `Series.chunkBy`, with the exception that it transforms keys to a new space. This operation is only supported on ordered series. The method throws `InvalidOperationException` when the series is not ordered. For unordered series, similar functionality can be implemented using `Series.groupBy`. [category:Sampling, resampling and advanced lookup]

public static Series<K2, Series<K1, V1>> resampleEquiv<K1, K2, V1>(
	FSharpFunc<K1, K2> keyProj,
	Series<K1, V1> series
)