Five number summaries, fractiles

There is Tukey's five number summary (minimum, lower hinge, median, upper hinge, maximum)

(same information as fivenum but with labels for the five values): in addition it also accepts matrices and data frames as arguments, e.g. summary(world) displays the five numbers for all numerical variables in world

In package LearnEDA there is an lval function:


displaying all letter values for a variable.

Besides these functions, there are of course many functions meant to produce order statistics.

Remember that you always can use apply() to compute a statistic for a series of variables.


Computes the median for all variables (columns of world).