Ability to select / exclude data points in scatter chart

[cedric2]

By clicking on a given data point, decide to focus or to exclude it from the population. Also, ability to select a set of points (for example via a rectangle or a circle) and again, focus or exclude this set. By "focus", I mean keep only those selected data points.

[mlwmsite]

Currently it's very hard to analyze a large scatter plot, especially when there are outliers. The ability not only to exclude, but also to drag and select multiple data points and 'zoom' in on them. Tableau does a great job of this.