CovaranceP

Ensor.CovaranceP(Ensor* pEnsor1, Ensor* pEnsor2)

Parameters

• Ensor* pEnsor1

Ensor.new() 함수등에 의해 만들어진 포인터를 입력합니다(data1).

• Ensor* pEnsor2

Ensor.new() 함수등에 의해 만들어진 포인터를 입력합니다(data 2).

Return Value

Ensor* pRetEnsor : CovarianceP값을 가진 Ensor*를 반환합니다.

Remarks

• Returns population covariance, the average of the products of deviations for each data point pair in two data sets.

• The covariance is:

  

  where

  

  are the sample means Average(data1) and Average(data2).

Examples1

function MathEquation()
     local ensor_x = ensor.new("{3,2,4,5,6}")
    local ensor_x2 = ensor.new("{9,7,12,15,17}")
    local ensor_y = ensor.CovarianceP(ensor_x,ensor_x2)

     ensor.Table(ensor_y)
end

Result