Edit Structural Coefficient

Context

• BayesiaLab uses proprietary score-based learning algorithms, which use the Minimum Description Length Score (MDL) to measure the quality of candidate networks with respect to the available data.
• In BayesiaLab, the computation of the MDL Score also includes the so-called Structural Coefficient α as a weighting factor for the structural component $DL(B)$.
• Please see Key Concepts: Structural Coefficient for more details.

Usage

There are multiple ways to open the Structural Coefficient window:

• Select Main Menu > Edit > Edit Structural Coefficient.
• Select Graph Panel Context Menu > Structural Coefficient.
• If the Structural Coefficient indicator is displayed in the Status Bar, click on the icon .
• In the Structural Coefficient window,
  • Use the slider to select the desired level.
  • Use the up/down buttons to change the display value in 0.05 increments.
  • Type in the desired value.

Workflow Illustration

• To illustrate the usage of the Structural Coefficient and its impact on learning, we use an example presented in the webinar, Analyzing Capital Flows of Exchange-Traded Funds.