mean

Return average or mean values in DataMatrix object

Syntax

M = mean(DMObj)
M = mean(DMObj, Dim)
M = mean(DMObj, Dim, IgnoreNaN)

Input Arguments

DMObj

DataMatrix object, such as created by DataMatrix (object constructor).

Dim

Scalar specifying the dimension of DMObj to calculate the means. Choices are:

  • 1 — Default. Returns mean values for elements in each column.

  • 2 — Returns mean values for elements in each row.

IgnoreNaN

Specifies if NaNs should be ignored. Choices are true (default) or false.

Output Arguments

M

Either of the following:

  • Row vector containing the mean values from elements in each column in DMObj (when Dim = 1)

  • Column vector containing the mean values from elements in each row in DMObj (when Dim = 2)

Description

M = mean(DMObj) returns the mean values of the elements in the columns of a DataMatrix object, treating NaNs as missing values. M is a row vector containing the mean values for elements in each column in DMObj.

M = mean(DMObj, Dim) returns the mean values of the elements in the columns or rows of a DataMatrix object, as specified by Dim. If Dim = 1, returns M, a row vector containing the mean values for elements in each column in DMObj. If Dim = 2, returns M, a column vector containing the mean values for elements in each row in DMObj. Default Dim = 1.

M = mean(DMObj, Dim, IgnoreNaN) specifies if NaNs should be ignored. IgnoreNaN can be true (default) or false.

Version History

Introduced in R2008b

See Also

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