Artificial_3: Artificial data set to demonstrate possible instabilities

In SparseMSE/sparsemse: Multiple systems estimation for Sparse capture data

Description

This is a simple data set based on three lists, which shows that there is not necessarily any clear hierarchical relationship between models that fail on one or the other of the criteria tested by checkident.

Usage

Artificial_3

Format

An object of class data.frame with 4 rows and 4 columns.

Details

If all three interactions are included in the fitted model then then the linear program in checkident yields a strictly positive value but the matrix A is not of full column rank, so the parameters are not identifiable. If the model contains AB either alone or in conjunction with one of AC and BC, then the linear program result is zero, so the MLE does not exist. If only main effects are considered, or if either or both of AC and BC, but not AB are included, then the model passes both tests.

SparseMSE/sparsemse documentation built on May 7, 2019, 7:13 p.m.