Manuals/calci/COVAR

COVAR(a1,a2)

where,

• $a1$ is the first array of integers or reference to the cells containing array
• $a2$ is the second array of integers or reference to the cells containing array

COVAR calculates the covariance, the average of the products of deviations for each data point pair in two arrays.

Description

COVAR(a1,a2)

• COVAR is used to determine the relationship between two data sets.
• Arguments $a1$, $a2$ can be numbers or can be names, arrays or references containing numbers.
• Values containing text, logical values or empty cells are ignored.
• If either $a1$ or $a2$ is empty, Calci displays a NaN error message.
• The number of data points in $a1$ and $a2$ should be same, else Calci displays a #N/A error message.

ZOS

• The syntax is to use the COVAR function in ZOS is $COVAR(Array1,Array2)$
  • $Array1$ and $Array2$ are the set of values to find the Covariance.
• For e.g.,COVAR([10,20,15,17,19],[12,22,31,16,45])
• COVAR([50..57],[17..24])

Examples

Array 1	Array 2
2	21
4	22
6	23
8	24
10	25

=COVAR(A2:A6,B2:B6) : Returns 4 as the output.
=COVAR(A2:A5,[12,13,14,15]) : Returns 2.5 as the output.

Related Videos

Covariance

See Also

• COVARIANCE

References

• Covariance

• List of Main Z Functions

• Z3 home