How about simple methods such as min and max #67

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1. saralilyb commented on Feb 29, 2016

   

   saralilyb

   on Feb 29, 2016

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   Edit: Here. Works in JavaScript or CoffeeScript or whatever. No error checking or anything.

   arrmax = numeric.mapreduce('if(xi > accum) accum=xi;','-Infinity');
   arrmin = numeric.mapreduce('if(xi < accum) accum=xi;','Infinity');
   

   Older:

   Not efficient at all, but here's what I'm using. I'm sure there's a clever way to do this with mapreduce.

   The following are done up to dig into nested arrays and find the max or min values in them. From StackOverflow. This is CoffeeScript.

   arrmax = (arrs) ->
       toplevel = []
       i = 0
       l = arrs.length
       while i < l
           toplevel.push Math.max.apply(window, arrs[i])
           i++
       Math.max.apply window, toplevel
   arrmin = (arrs) ->
       toplevel = []
       i = 0
       l = arrs.length
       while i < l
           toplevel.push Math.min.apply(window, arrs[i])
           i++
       Math.min.apply window, toplevel