Controls affecting belief comparisons and comparison diagrams

Belief sourcing for the comparison of hypotheses

 

Usage

• BD>control  compare  = I1, I2 where I1 and I2 are integers representing valid belief store numbers.

• The default values are I1=1 and I2=2.

The compare  control determines the belief stores from which covariances will be taken for the comparison of alternative variance hypotheses. Future belief comparisons then compare the alternative specifications to (over) for the base .  

Setting the diagram standard deviation scale

 

Usage

• BD>control  cdscaler  = I where I is an integer.

• The default value is I1=3 standard deviations.

The cdscaler  control specifies the number of standard deviations (relative to the model having the largest variance in that quadrant) represented by the node radius. It is used to determine how far along the radius, from centre to boundary, an observed value will be plotted. An observed value of 1.5 will be plotted half way to the boundary, by default. An obseved value of more than three will be plotted on the boundary, and shaded differently.  

Setting the radius of the observation mark

 

Usage

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

• by default R=0.

Observed values of eigenvectors comparing two alternative specifications are marked as small circles in quadrants on a belief comparison diagram. The label consists of a small circle, whose radius has a default value which can be reinstated by issuing the pcradius  control with argument . Otherwise a real value in (0,1) can be supplied. The default value is currently one third the radius of the default node size.