Manuals/calci/COVAR

COVAR(a1,a2)

where,

• Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle a1} is the first array of integers or reference to the cells containing array
• Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle 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 Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle a1} , Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle 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 Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle a1} or Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle a2} is empty, Calci displays a NaN error message.
• The number of data points in $a1$ and Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle a2} should be same, else Calci displays a #N/A error message.

ZOS

• The syntax is to use the COVAR function in ZOS is Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle COVAR (Array1,Array2)}
  • Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle Array1} and Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle 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