getImportantCtr: Get the items with important contributions for a factorial...

In HerveAbdi/data4PCCAR: Some data sets and R-functions for PCA and CA to accompany Abdi & Beaton (to appear, 2023) Principal Component and Correspondence Analysis with R

Get the items with important contributions for a factorial plane.

Description

getImportantCtr: Gets the items whose contribution is important for a factorial plane. getImportantCtr.12 gives the contributions of the items to the plane, the items important for the plane, and the items important for the plane or for at least one dimension of the plane.

Usage

getImportantCtr(ctr, eig, axis1 = 1, axis2 = 2)

Arguments

ctr	The contributions of the items (e.g., the output of ExPosition such as $ExPosition.Data$ci).
eig	the eigenvalues of the analysis (e.g., the output of ExPosition such as $ExPosition.Data$eigs).
axis1	the horizontal axis (Default: 1).
axis2	the vertical axis (Default: 2).

Details

getImportantCtr is mostly used to create clean factorial maps by plotting only the important items. getImportantCtr.12: can be used for row or columns of PCA, CA, MCA, etc.

Value

a list with

• ctr.12: The contributions of the items to the plane;

• importantCtr.12: A logical vector identifying the items whose contribution to the plane is larger than the average;

• importantCtr.1or2: A logical vector identifying the items whose contribution to the plane is larger than the average, or is larger than the average for at least one of the components.

Author(s)

Hervé Abdi

HerveAbdi/data4PCCAR documentation built on Sept. 11, 2022, 4:19 p.m.