DVARP

Calculates variance based on the entire population of selected database entries,


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Database

array(7) { [4]=> array(5) { ["A"]=> string(4) "Tree" ["B"]=> string(6) "Height" ["C"]=> string(3) "Age" ["D"]=> string(5) "Yield" ["E"]=> string(6) "Profit" } [5]=> array(5) { ["A"]=> string(5) "Apple" ["B"]=> float(18) ["C"]=> float(20) ["D"]=> float(14) ["E"]=> float(105) } [6]=> array(5) { ["A"]=> string(4) "Pear" ["B"]=> float(12) ["C"]=> float(12) ["D"]=> float(10) ["E"]=> float(96) } [7]=> array(5) { ["A"]=> string(6) "Cherry" ["B"]=> float(13) ["C"]=> float(14) ["D"]=> float(9) ["E"]=> float(105) } [8]=> array(5) { ["A"]=> string(5) "Apple" ["B"]=> float(14) ["C"]=> float(15) ["D"]=> float(10) ["E"]=> float(75) } [9]=> array(5) { ["A"]=> string(4) "Pear" ["B"]=> float(9) ["C"]=> float(8) ["D"]=> float(8) ["E"]=> float(76.8) } [10]=> array(5) { ["A"]=> string(5) "Apple" ["B"]=> float(8) ["C"]=> float(9) ["D"]=> float(6) ["E"]=> float(45) } }

Criteria


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array(3) { [1]=> array(1) { ["A"]=> string(4) "Tree" } [2]=> array(1) { ["A"]=> string(6) "=Apple" } [3]=> array(1) { ["A"]=> string(5) "=Pear" } } The variance in the yield of Apple and Pear trees

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