On Tue, May 6, 2014 at 4:33 PM, Kip Murray <[email protected]> wrote:
> jtfns 1 2 2 4 6 NB. correct > 1 1.5 2 5 6 > five 1 2 2 4 6 NB. doesn't work if repetitions in data > 1 1 2 5 6 > > On Tue, May 6, 2014 at 4:33 PM, Kip Murray <[email protected]> wrote: > five 1 2 2 4 6 NB. doesn't work if repetitions in data > 1 1 2 5 6 > > It's interesting that R gives even a different result ( http://en.wikipedia.org/wiki/Five-number_summary#Example_in_R) > z <- c(1,2,2,4,6) > fivenum(z) [1] 1 2 2 4 6 > summary(z) Min. 1st Qu. Median Mean 3rd Qu. Max. 1 2 2 3 4 6 For the 1st quartile, Excel gives 2 with QUARTILE.INC and 1.5 with QUARTILE.EXC For the 3rd, Excel gives 4 and 5 respectively So R is following the "INC" method http://stats.stackexchange.com/questions/28123/quartiles-in-excel is an interesting read ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
