cov.pop: Population Covariance
In mstellwa/rfml: MarkLogic NoSQL Database Server in-Database Analytics for R

Description Usage Arguments Details Value Examples

Returns the population covariance of two variables, ml.data.frame fields.

1	cov.pop(x, y)

`x`	a ml.data.frame field.
`y`	a ml.data.frame field

The function eliminates all pairs for which either the first element or the second element is empty. After the elimination, if the length of the input is 0, the function returns the empty sequence.

The population covariance

## Not run: 
 library(rfml)
 locConn <- ml.connect()
 # create a ml.data.frame based on a search
 mlIris <- ml.data.frame(locConn, collection = "iris")
 # return the population covariance
 cov.pop(mlIris$Sepal.Length, mlIris$Petal.Length)

## End(Not run)