RollingColumn (tablesaw-core 0.24.1 API)

```
public class RollingColumn
extends Object
```
Does a calculation on a rolling basis (e.g. mean for last 20 days)

Constructors
Constructor	Description
`RollingColumn(Column column, int window)`

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`NumberColumn`	`calc(AggregateFunction function)`
`NumberColumn`	`geometricMean()`
`NumberColumn`	`mean()`
`NumberColumn`	`median()`
`NumberColumn`	`pctChange()`
`NumberColumn`	`sum()`

public RollingColumn(Column column,
                     int window)

public NumberColumn geometricMean()

public NumberColumn calc(AggregateFunction function)

Class RollingColumn