Help:RiskModel

Help:RiskModel

The `

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Usage

1. Use the `

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This creates a model called "SimpleRisk" that multiplies `base_probability` and `distraction_odds_ratio` from a DataTable2 table.

Risk Model with Complex Calculation

Define a model with a more complex expression:

<riskmodel name="RiskScore" calculation="base_probability * severity_weight + mitigation_factor / 2">Calculates a weighted risk score</riskmodel>

This model, "RiskScore", computes `base_probability * severity_weight + mitigation_factor / 2`, using DataTable2 column names.

Notes

• The `name` attribute must be unique on the page to avoid conflicts.
• Variable names in the `calculation` must match column names in a DataTable2 table (e.g., `base_probability`, `severity_weight`). Mismatched names will cause errors when used.
• The `calculation` must be a valid mathematical expression. Invalid expressions will cause an error when used (e.g., in `<riskdisplay>`).
• The description inside the tag is optional but helps document the model’s purpose.
• Risk models can be defined on the current page or a "Data/" subpage and referenced by name in other tags.

Troubleshooting

• **Error: "riskmodel: missing name attribute"** – Include the `name` attribute in the tag.
• **Error: "riskmodel: missing calculation attribute"** – Include the `calculation` attribute.
• **Error: "riskmodel [expression]: [error message]"** – Check the `calculation` for syntax errors (e.g., unbalanced parentheses or invalid operators).
• **Model not found in `<riskdisplay>`** – Ensure the `name` matches exactly and the model is defined on the current page or a "Data/" subpage.
• **Calculation fails** – Verify that all variable names in the `calculation` match column names in the associated DataTable2 table.

For related features, see RiskDisplay documentation or DataTable2 documentation.