Yes the details of the implementation would depend on what you were using the values for.
Sort of a "grey box" issue (as opposed to "black box"). Thanks, -- Raul On Fri, Jul 24, 2020 at 3:04 PM 'robert therriault' via Programming <[email protected]> wrote: > > I think that I would go with a list if there were more than one mode value. > If you think about it taking the median would work against the most common > occurring because it is likely that the median of the two most common values > may not occur as a value at all! At least the list result retains the > information of values most likely to occur. > > Cheers, bob > > > On Jul 24, 2020, at 11:46, Raul Miller <[email protected]> wrote: > > > > https://en.wikipedia.org/wiki/Mode_(statistics)#Uniqueness_and_definedness > > > > "Finally, as said before, the mode is not necessarily unique. Certain > > pathological distributions (for example, the Cantor distribution) have > > no defined mode at all." > > > > That said, just as we can redefine median to be the mean of the two > > median values when the length of the sequence is even, we could > > redefine mode as the median of the candidate mode values when there is > > more than one "most frequently occuring value". > > > > Thanks, > > > > -- > > Raul > > > > On Fri, Jul 24, 2020 at 2:36 PM Devon McCormick <[email protected]> wrote: > >> > >> Hi - I've started reading "Fun Q" which is a book on machine learning using > >> the q language. Early on, the author points out that his "mode" function - > >> where "mode" is stats-talk for "the most frequent observation" - is > >> order-dependent. > >> > >> I checked my own "mode" and found that this is true of mine as well: > >> mode > >> ~. {~ [: (i. >./) #/.~ > >> mode 1 2 2 3 3 > >> 2 > >> mode 1 3 3 2 2 > >> 3 > >> > >> This might be an ill-defined statistical concept but does anyone have any > >> insight based on practice? Is this order-dependence just a weakness of the > >> definition of "mode"? > >> > >> I could not find "mode" defined in any of the J standard libraries. > >> > >> Thanks, > >> > >> Devon > >> > >> -- > >> > >> Devon McCormick, CFA > >> > >> Quantitative Consultant > >> ---------------------------------------------------------------------- > >> For information about J forums see http://www.jsoftware.com/forums.htm > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
