Variance - Revision history

Cg van at 10:52, 20 December 2011

2011-12-20T10:52:09Z

← Older revision		Revision as of 10:52, 20 December 2011
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	'''Example'''		'''Example'''

	variance(C1) where C2 == [1];		''number n = variance(C1) where C2 == [1]; ''

			''print(n); //return variance value ''

	'''Availability'''		'''Availability'''

Cg_pham at 08:13, 12 December 2011

2011-12-12T08:13:10Z

← Older revision		Revision as of 08:13, 12 December 2011
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	[[Category:Functions_Used_in_where_Expressions]]		[[Category:Functions_Used_in_where_Expressions]]
			{{HelpFiles}}

	====variance====		====variance====

Cg_pham at 04:27, 28 March 2011

2011-03-28T04:27:32Z

← Older revision		Revision as of 04:27, 28 March 2011
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	[[Category:~~HelpBooks~~]]		[[Category:Functions_Used_in_where_Expressions]]

Catglobe: jrfconvert import

2011-03-07T08:55:53Z

jrfconvert import

New page

[[Category:HelpBooks]]

====variance====

Estimates variance based on a data cache column’s values.

Calculates

[[Image:777.gif]]

Where x is the sample mean average and n is the sample size.

Note that the variance is NOT calculated based on the categories, but using all data in the dcs. All empty values are ignored.

'''Syntax'''

variance(''dcsColumn'')

'''Arguments'''

''dcsColumn'': is a numeric dcs column (column whose data type is Number)

'''Example'''

variance(C1) where C2 == [1];

'''Availability'''

Version 5.2
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