chi3ordered {CA3variants} | R Documentation |
When three categorical variables are symmetrically related, we can analyse the strength of
the symmetrical association using the three-way Pearson statistic.
The function chi3ordered
partitions the Pearson phi-squared statistic using orthogonal polynomials
when, in CA3variants
, we set the parameter ca3type = "OCA3"
.
chi3ordered(f3, digits = 3)
f3 |
The three-way contingency array given as an input parameter in |
digits |
The number of decimal digits. By default digits=3. |
The partition of the Pearson index into three two-way association terms and one three-way association term. It also shows the polynomial componets of inertia, the percentage of explained inertia, the degrees of freedom and p-value of each term of the partition.
Rosaria Lombardo, Eric J Beh, Ida Camminatiello.
Lombardo R, Beh EJ and Kroonenberg PM (2021) Symmetrical and Non-Symmetrical Variants of Three-Way Correspondence Analysis for Ordered Variables. Statistical Science, 36 (4), 542-561.
#data(happy)
chi3ordered(f3 = happy, digits = 3)