Anova1w
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Contents |
Purpose
One-way analysis of variance.
Synopsis
- anova1w(dat,alpha)
- results = anova1w(dat,alpha)
Description
Calculates one way ANOVA table and tests significance of between factors variation (it is assumed that each column of the data represents a different treatment). Inputs are the data table (dat) and the optional desired confidence level (alpha), expressed as a fraction (e.g. 0.99, 0.999). {default = 0.95}. A text table is displayed if no output is requested.
Inputs
- dat = Data table where columns are factors.
Optional Inputs
- alpha = desired confidence level expressed as a fraction (default = 0.95)
Outputs
- results = A structure array containing all the contents of the table including the fields:
- .ssq : Sum of Squares (with sub-fields for factors, residual and total)
- .dof : Degrees of Freedom (with sub-fields for factors, residual and total)
- .mean_sq : Mean Square (with sub-fields for factors and residual)
- .F : F-test value for factors
- .F_crit : F-test critical value (for given alpha)
- .alpha : provided alpha
- .p : p-value for F-test value (alpha where F is significant)
- .table : cell array containing the the text description of the results (same as displayed with no outputs).