Steven Sanderson applies things a different way:
Hey R enthusiasts! Today we’re diving into the world of data manipulation with a fantastic function called
tapply(). This little gem lets you apply a function of your choice to different subgroups within your data.Imagine you have a dataset on trees, with a column for tree height and another for species. You might want to know the average height for each species.
tapply()comes to the rescue!
Read on to see how it works.