Controls for partial correlation results

Setting the belief source

 

Usage

• BD>control  pcsource =I where I is an integer representing a valid belief store number.

• the default source is belief store number .

The pcsource  control is used to set the source belief store for the variance matrix to be used in a pcdiag  command.  

Retaining the partial correlations

 

Usage

• BD>control  pcdest =I where I is an integer equal to zero or representing a valid belief store number.

• by default I=0, meaning that the partial correlations are not retained.

The pcdest  control is used to set the destination belief store for the numerical results (partial correlations and multiple correlations) for the collection subject to the pcdiag  command. By default the partial correlations are not retained, and a value of I=0 above always restores this default.  

Setting the partial correlation threshhold for arcs

 

Usage

• BD>control  pcarc =R where R is a a real number such that .

• by default R=0.

Arcs are drawn between all the nodes on the partial correlation diagram provided that the magnitude of the partial correlation between two nodes exceeds the threshhold value set by the pcarc  control. Whenever the control is set to zero a small tolerance (currently ) is allowed so that a calculated partial correlation of is taken as zero.