A trace plot visualizes the sequence of sample values generated by an MCMC chain over iterations. To determine stationarity, look for the point where the values stop converging and begin to fluctuate around a stable equilibrium, indicating the end of the burn-in period.
Conditions: Used for diagnosing MCMC convergence.; Requires plotting sample values against iteration numbers.; The plot shows both the burn-in and stationary phases.
A trace plot visualizes the sequence of sample values generated by an MCMC chain over iterations. To determine stationarity, look for the point where the values stop converging and begin to fluctuate around a stable equilibrium, indicating the end of the burn-in period.
Conditions: Used for diagnosing MCMC convergence.; Requires plotting sample values against iteration numbers.; The plot shows both the burn-in and stationary phases.
The burn-in period consists of the initial samples generated by an MCMC algorithm before it has converged to its stationary distribution. These samples must be discarded because they are influenced by the arbitrary starting point and do not accurately represent the target distribution.
Conditions: Applies to MCMC sampling.; Requires discarding initial samples before using the rest for inference.; The chain starts from an arbitrary point.
The burn-in period consists of the initial samples generated by an MCMC algorithm before it has converged to its stationary distribution. These samples must be discarded because they are influenced by the arbitrary starting point and do not accurately represent the target distribution.
Conditions: Applies to MCMC sampling.; Requires discarding initial samples before using the rest for inference.; The chain starts from an arbitrary point.
Changing the Current Year filter acts as a global control that synchronously updates all displayed aggregates and charts. For example, switching from 2022 to 2021 updates the top KPI tiles from 141,200 Total Accidents and 191,681 Total Casualties to 176,727 and 241,177 respectively, and changes the donut-chart centers to 5.3K.
Conditions: The dashboard is actively displaying the ROAD ACCIDENT DASHBOARD.; The user interacts with the Current Year dropdown menu.
Changing the Current Year filter acts as a global control that synchronously updates all displayed aggregates and charts. For example, switching from 2022 to 2021 updates the top KPI tiles from 141,200 Total Accidents and 191,681 Total Casualties to 176,727 and 241,177 respectively, and changes the donut-chart centers to 5.3K.
Conditions: The dashboard is actively displaying the ROAD ACCIDENT DASHBOARD.; The user interacts with the Current Year dropdown menu.
The dashboard layout combines summary indicators (KPI tiles for Total Accidents, Total Casualties, Fatal, Serious, and Slight Casualties), monthly trend lines, categorical breakdowns by vehicle type, weather, road surface, and road carriageway using donut and bar charts, plus a geographic map of fatal casualties by location.
Conditions: The user is viewing the ROAD ACCIDENT DASHBOARD section of the web application.
The dashboard layout combines summary indicators (KPI tiles for Total Accidents, Total Casualties, Fatal, Serious, and Slight Casualties), monthly trend lines, categorical breakdowns by vehicle type, weather, road surface, and road carriageway using donut and bar charts, plus a geographic map of fatal casualties by location.
Conditions: The user is viewing the ROAD ACCIDENT DASHBOARD section of the web application.