Difference between revisions of "Documentation/How Tos/Calc: DEVSQ function"
From Apache OpenOffice Wiki
< Documentation | How Tos
(Initial content) |
m (→Syntax:) |
||
| Line 8: | Line 8: | ||
: <tt>'''number1'''</tt> to <tt>'''number30'''</tt> are up to 30 numbers or ranges containing numbers. | : <tt>'''number1'''</tt> to <tt>'''number30'''</tt> are up to 30 numbers or ranges containing numbers. | ||
| − | : <tt>'''DEVSQ'''</tt> calculates the mean of all the numbers, then sums the squared deviation of each number from that mean. | + | : <tt>'''DEVSQ'''</tt> calculates the mean of all the numbers, then sums the squared deviation of each number from that mean. With N values, the calculation formula is: |
:: [[Image:Calc_devsq_equation.png]]. | :: [[Image:Calc_devsq_equation.png]]. | ||
Revision as of 05:59, 27 April 2008
DEVSQ
Returns the sum of squares of deviations from the mean.
Syntax:
DEVSQ(number1; number2; ... number30)
- number1 to number30 are up to 30 numbers or ranges containing numbers.
- DEVSQ calculates the mean of all the numbers, then sums the squared deviation of each number from that mean. With N values, the calculation formula is:
-
.
-
Example:
DEVSQ(1; 3; 5)
- returns 8, calculated as (-2)2 + 0 + (2)2.
