FAST: Factorial Approach for Sorting Task data

Description

Performs Multiple Factor Analysis combined with Procrustean Analysis.

Details

Perform Factorial Approach for Sorting Task data (FAST) on a table where the rows (i) are products and the columns (j) are consumers. A cell (i,j) corresponds either to the number of the group to which the product i belongs to for the consumer j, or, in the case of "qualified" categorization, to the sequence of words associted to the group of which the product belongs to (i) for the consumer j.

Results

Individuals factor map		Variables' factor map		Groups' representation		Nb of groups formed from sorting tasks		Confidence ellipses

Nb of products per group

Outputs

A list containing the following elements:

eig	a matrix containing all the eigenvalues, the percentage of variance and the cumulative percentage of variance
var	a list of matrices containing all the results for the categories (coordinates, square cosine, contributions, v.test)
ind	a list of matrices containing all the results for the products (coordinates, square cosine, contributions)
group	a list of matrices containing all the results for consumers (coordinates, square cosine, contributions)
cooccur	the reordered co-occurrence matrix among products
reord	the reordered matrix products*consumers
cramer	the Cramer's V matrix between all the consumers
call	a list with some statistics