Description

Confidence interval bounds are determined for each selected parameter in turn. This method is based on computing the covariance matrix and returning the diagonal elements.

If no arguments are given this function, it is assumed that the data id is the default data id, and that limits should be computed for all thawed parameters.

If arguments are given, each argument is examined to see if it is a Sherpa model parameter. If model parameters are given, it is assumed that limits for only those parameters should be computed. Any argument that is not a model parameter is assumed to be a data id. When additional arguments are given, they may be data set ids or model parameters in any order, even mixed.