Modern R Programming Cookbook

How it works…

The newly created S4 object rStatsS4 displays the results into the R console as follows:

    > rStatsS4    An object of class "robustSummary"    Slot "median":    [1] 19    Slot "mad":     [1] 5.9304    Slot "q1":     [1] 16    Slot "q3":     [1] 23.75

This is the default method of the show() generic function. Once you have defined the method for the class robustSummary, the result will display as you defined within the method. Here is the result using the newly defined method for the robustSummary class:

    > show(rStatsS4)    The median is  19  with median absolute deviation (MAD) =  5.9304    First and Third Quartile is 16 and 23.75    > rStatsS4    The median is  19  with median absolute deviation (MAD) =  5.9304    First and Third Quartile is 16 and 23.75