# colSDev(a)

Array statistics - determines the Standard Deviation of each column in an array

### Syntax

o_colSDev(a)
  a: array 2D numeric - input 2D array
  return: array 2D - statistics of each column

### Usage

When analyzing plentiful data, such as with a number of tests on many DUTs it can be desirable to examine the statistics of various parameters. A typical way to represent the data is in an array, with each row representing a test vector, each column a particular tested parameter. This function analyzes the Standard Deviaiton of each column- hence each parameter.

### Location

menu: veeos ==> Math ==> Arrays ===> colSDev

library: mathLib

### Example

                4 4 5 3
    o_colSDev([ 3 5 4 5 ]   returns  [.82 1.41 .82 3.56]
                3 6 5 8

### Notes

### Reference

### Dependencies

### Supported On

VEE 7.0+, all platforms

### See Also

colMax, colMean, colMedian, colMin, colMode, colRMS, colVari

© 2015-2017. All Rights Reserved. Stan Bischof (stan@worldbadminton.com). Last updated 24 February 2017 08:58.