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API for accumulators - clojure-contrib v1.3 (in development)

by Konrad Hinsen
Usage: 
(ns your-namespace
  (:require clojure.contrib.accumulators))

Overview


A generic accumulator interface and implementations of various
accumulators.






Public Variables and Functions



  

  

  
add-items

  function

  
Usage: (add-items acc items)


  
Add all elements of a collection coll to the accumulator acc.

  
  
  Source


  

  

  
empty-counter

  var

  

  
An empty counter accumulator. Its value is a map that stores for
every item the number of times it was added.

  
  
  Source


  

  

  
empty-counter-with-total

  var

  

  
An empty counter-with-total accumulator. It works like the counter
accumulator, except that the total number of items added is stored as the
value of the key :total.

  
  
  Source


  

  

  
empty-list

  var

  

  
An empty list accumulator. Adding an item appends it at the beginning.

  
  
  Source


  

  

  
empty-map

  var

  

  
An empty map accumulator. Items to be added must be [key value] pairs.

  
  
  Source


  

  

  
empty-maximum

  var

  

  
An empty maximum accumulator. Only numbers can be added.

  
  
  Source


  

  

  
empty-mean-variance

  var

  

  
An empty mean-variance accumulator, combining sample mean and
sample variance. Only numbers can be added.

  
  
  Source


  

  

  
empty-min-max

  var

  

  
An empty min-max accumulator, combining minimum and maximum.
Only numbers can be added.

  
  
  Source


  

  

  
empty-minimum

  var

  

  
An empty minimum accumulator. Only numbers can be added.

  
  
  Source


  

  

  
empty-product

  var

  

  
An empty sum accumulator. Only numbers can be added.

  
  
  Source


  

  

  
empty-queue

  var

  

  
An empty queue accumulator. Adding an item appends it at the end.

  
  
  Source


  

  

  
empty-set

  var

  

  
An empty set accumulator.

  
  
  Source


  

  

  
empty-string

  var

  

  
An empty string accumulator. Adding an item (string or character)
appends it at the end.

  
  
  Source


  

  

  
empty-sum

  var

  

  
An empty sum accumulator. Only numbers can be added.

  
  
  Source


  

  

  
empty-tuple

  function

  
Usage: (empty-tuple empty-accumulators)


  
Returns an accumulator tuple with the supplied empty-accumulators
as its value. Accumulator tuples consist of several accumulators that
work in parallel. Added items must be sequences whose number of elements
matches the number of sub-accumulators.

  
  
  Source


  

  

  
empty-vector

  var

  

  
An empty vector accumulator. Adding an item appends it at the end.

  
  
  Source






              

            

          

	

	
      

      
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