Documentation/How Tos/Calc: CHITEST function

CALC FUNCTIONS

Statistical Functions

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FUNCTIONS

Measures of Central Tendency

• Avedev
• Average
• Averagea
• Count
• Counta
• Geomean
• Hearmean
• Median
• Mode
• Trimmean

Measures of dispersion / spread

• Devsq
• Kurt
• Skew
• Stdev
• Stedeva
• Stdevp
• Stdevpa
• Var
• Vara
• Varp
• Varpa

Probability and statistics

• B
• Betadist
• Betainv
• Binomdist
• Chidist
• Chiinv
• Chisqinv
• Chitest
• Confidence
• Critbinom
• Expondist
• Finv
• Fisher
• Fisherinv
• Fdist
• Ftest
• Gamma
• Gammainv
• Gammaln
• Gammadist
• Gauss
• Hypgeomdist
• Loginv
• Lognormdist
• Negbinomdist
• Norminv
• Normdist
• Normsinv
• Normsdist
• Permut
• Permutationa
• Phi
• Poisson
• Prob
• Standardize
• Tdist
• Tinv
• Ttest
• Weibull
• Ztest

Correlation and line fitting

• Correl
• Covar
• Forecast
• Intercept
• Pearson
• Rsq
• Slope
• Steyx

See also (in the Array Function category); GROWTH, LINEST, LOGEST, TREND

Ranking

• Large
• Max
• Maxa
• Min
• Mina
• Percentile
• Percentrank
• Quartile
• Rank
• Small

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CHITEST

Returns a measure of χ² 'goodness of fit'.

Syntax:

CHITEST(observed; expected)

observed and expected are ranges or arrays of observed and expected values. They must have the same number of rows and columns and there must be at least 2 values in each.

CHITEST calculates the χ² statistic and degrees of freedom, then calls CHIDIST.

Example:

CHITEST({8;9;7;8}; {8;8;8;8})

returns approximately 0.969.

Issues:

• The draft international standard ODFF calls this function LEGACY.CHITEST, and points out that it has limited mathematical validity. CHITEST is compatible with the Excel CHITEST function.

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See Also

• CHIDIST
• CHIINV

• Statistical functions

• Functions listed alphabetically
• Functions listed by category