MATLAB standard deviation

std( ) command or function gives the standard deviation value of vector or matrix or array elements, after reading this MATLAB standard deviation topic, you will know the theory and examples.

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Syntax:

std(n)

• n can be a vector or matrix.

Example: To create a vector and find the standard deviation of all elements of a vector.

Output:
n =

1 2 2 10 5 78

ans =

30.3886
Example: To create a matrix and find a standard deviation value of each column of the matrix.
Output:






n =

1   2   3
1   2   23
4   5   21


ans =

1.7321  1.7321  11.0151
Explanation:

1.7321, 1.7321 and 11.0151 are the standard deviation value of the first, second and third column of the matrix respectively.


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