Hi, If you have a lot of values, be careful, you might overflow your int. There is a technique[0] which does that in JS, returning not the sum and the count fields but the average and the count fields.
[0]: http://tobyho.com/Taking_an_Average_in_CouchDB On Thu, Oct 14, 2010 at 12:52 PM, Randall Leeds <[email protected]>wrote: > http://wiki.apache.org/couchdb/Built-In_Reduce_Functions#A_stats > > Using the string "_stats" as your reduce function will get you a > built-in reduction that contains both "count" and "sum" fields in the > output. > > On Thu, Oct 14, 2010 at 00:29, sleepy <[email protected]> wrote: > > Hi, > > > > I'm doing some statistics on my data and wondering is there > > an straightforward way of calculating the mean value through reduce > > function. > > Maybe a build-in reduce function or something... > > > > sleepnova > > >
