Produces a column of the standard deviations of each row of the input table.
ROWSTDEV(a)
a |
- |
A series or table. |
A single column series with the same number of rows as the input table.
a = {{2, 4, 6},
{8, 10, 12}}
b = rowstdev(a)
b == {2, 2}
ROWSTDEV computes the sample standard deviation for each row of a series where the sample standard deviation is defined as:
where the arithmetic mean is defined as:
ROWSTDEV handles arrays with differing number of elements.