Input array, specified as a vector, matrix, or multidimensional array. 1  If A is a scalar, then mean(A) returns A. 2  If A is an empty 0-by-0 matrix, then mean(A) returns NaN.
https://www.mathworks.com/help/matlab/ref/mean.html
M = mean(A) returns the mean of the elements of A along the first array dimension whose size does not equal 1. 1  If A is a vector, then mean(A) returns the mean of the elements. 2  If A is a matrix, then mean(A) returns a row vector containing the mean of each column. If A is a multidimensional array, then mean(A) operates along the first array dimension whose size does not equal 1, treating the elements as vectors.
https://www.mathworks.com/help/matlab/ref/mean.html
In the context of a relational database, a column is a set of data values of a particular simple type, one for each row of the table.[1] The columns provide the structure according to which the rows are composed.
https://en.wikipedia.org/wiki/Column_(database)
If A is a vector, then mean(A) returns the mean of the elements. If A is a matrix, then mean(A) returns a row vector containing the mean of each column. If A is a multidimensional array, then mean(A) operates along the first array dimension whose size does not equal 1, treating the elements as vectors. This dimension becomes 1 while the sizes of all other dimensions remain the same.
https://www.mathworks.com/help/matlab/ref/mean.html
Consider a two-dimensional input array, A. 1  If dim = 1, then mean(A,1) returns a row vector containing the mean of the elements in each column. 2  If dim = 2, then mean(A,2) returns a column vector containing the mean of the elements in each row.
https://www.mathworks.com/help/matlab/ref/mean.html
In the context of a relational database, a column is a set of data values of a particular simple type, one for each row of the table. The columns provide the structure according to which the rows are composed. When a column allows data values of a single type, it does not essentially mean it only has simple text values. Other databases go beyond and let the data be stored as a file on Operating System whereas the column data only covers a pointer or a link to the actual file.
https://en.wikipedia.org/wiki/Column_(database)
• COLUMN (noun) The noun COLUMN has 7 senses: 1. a line of (usually military) units following one after another. 2. a vertical glass tube used in column chromatography; a mixture is poured in the top and washed through a stationary substance where components of the mixture are adsorbed selectively to form colored bands. 3. a linear array of numbers one above another.
https://www.audioenglish.org/dictionary/column.htm
Hyponyms (each of the following is a kind of column): columella (a small column (or structure resembling a column) that is a part of a plant or animal) hoodoo ((geology) a column of weathered and unusually shaped rock)
https://www.audioenglish.org/dictionary/column.htm
M = mean(A,dim) returns the mean along dimension dim. For example, if A is a matrix, then mean(A,2) is a column vector containing the mean of each row. example M = mean(___,outtype) returns the mean with a specified data type, using any of the input arguments in the previous syntaxes.
https://www.mathworks.com/help/matlab/ref/mean.html
In relational database, a column is a set of data values of a particular simple type, one for each row of the table. The columns in relational database provide the structure according to how the rows are composed. When a column allows data values of a single type, it does not essentially mean it only has simple text values. Other databases go beyond and let the data be stored as a file on Operating System whereas the column data only covers a pointer or a link to the actual file. Also, databases
https://en.wikipedia.org/wiki/Column_(database)
what does column mean
A column is a set of data values of a particular simple type, one for each row of the table.