DADiSP Worksheet Functions > Function Categories > Statistics and Calculus > COLSTDEV
Produces a row of the standard deviations of each column in the input table.
COLSTDEV(a)
a |
- |
A series or table. |
A one-row table with the same number of columns as the input table.
colstdev(ravel({1,2,3},{2,3,4}))
returns {{1, 1}}
COLSTDEV computes the sample standard deviation for each column of a series where the sample standard deviation is defined as:
where the arithmetic mean is defined as: