create_labels_Sigma function

Create labels for Sigma

This function creates labels for the model parameter Sigma.

create_labels_Sigma(J, cov_sym, ordered = FALSE)

Arguments

• J: The number (greater or equal 2) of choice alternatives.
• cov_sym: Set to TRUE for labels of symmetric covariance elements.
• ordered: A boolean, FALSE per default. If TRUE, the choice set alternatives is assumed to be ordered from worst to best.

Returns

A vector of labels for the model parameter Sigma of length (J-1)^2 if cov_sym = TRUE or of length J*(J-1)/2

if cov_sym = FALSE. If ordered = TRUE, Sigma has only one element.

Details

The labels are of the form "j1,j2", where j1,j2 are indices of the two alternatives j1 and j2.

Examples

RprobitB:::create_labels_Sigma(3, cov_sym = TRUE)
RprobitB:::create_labels_Sigma(4, cov_sym = FALSE)
RprobitB:::create_labels_Sigma(4, ordered = TRUE)