| median {stats} | R Documentation |
Compute the sample median.
median(x, na.rm = FALSE)
x |
an object for which a method has been defined, or a numeric vector containing the values whose median is to be computed. |
na.rm |
a logical value indicating whether NA
values should be stripped before the computation proceeds. |
This is a generic function for which methods can be written. However,
the default method makes use of sort and mean, both of
which are generic, and so the default method will work for most
classes (e.g. "Date") for which a median is a reasonable
concept.
The default method returns a length-one object of the same type as
x, except when x is integer of even length, when the
result will be double.
If there are no values or if na.rm = FALSE and there are NA
values the result is NA of the same type as x (or more
generally the result of x[FALSE][NA]).
Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988) The New S Language. Wadsworth & Brooks/Cole.
quantile for general quantiles.
median(1:4)# = 2.5 [even number] median(c(1:3,100,1000))# = 3 [odd, robust]