PSRF related printing statements

[hariszaf]

In a single phase, we print univariate_psrf<NT, VT>(mmcs_set_of_parameters.samples).maxCoeff() and at the same time max_psrf.
For both we have the same printing statement that leads to the following:

phase 2: number of correlated samples = 9700, effective sample size = 82                                                                                                                                                                                                             
 [1]maximum marginal PSRF: 5.0247                                                                                                                                                                                                                                                    
[2]maximum marginal PSRF: 1.03836  

Isn't that a bit confusing.? Could we make this a bit clearer?

[vfisikop]

I agree, more generally dingo functions should have a verbose parameter that allow the user to either print or not these statements in the output.