Settings
The settings window is used to view and modify settings that persist over ParX invocations.
To open the settings window, choose ParX > Settings (⌘,) from the main menu.
On the iPad the settings are accessed by pressing the gear‑icon in the model toolbar.
The following settings are available:
Optimization Method
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- ModeSelection (default)
- Data points are eliminated until the average distance for all remaining points is smaller than one (1.0).
- Strict
- Data points are eliminated until no point remains with an individual distance greater than one (1.0).
- BestFit
- The classical method that stops when the optimum parameter values are identified. No data points are eliminated.
- ChiSquare
- Data points are eliminated until the ChiSquare test probability (𝛘²) for the remaining distances exceeds 0.5.
Parameter Precision
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- Consistency (default)
- The estimated parameter precision is solely based on the final value of the objective and the sensitivities.
- 1σ
- The precision is based on the probability model of the errors; the ±1σ bounds for the parameters, or 68.3%.
- 90%
- The 90% bounds for the parameters.
- 2σ
- The ±2σ bounds for the parameters, or 95.4%.
- 99%
- The 99% bounds for the parameters.
- 3σ
- The ±3σ bounds for the parameters, or 99.73%.
Number Notation
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- Scientific
- All numbers are displayed in scientific format, a mantissa and an exponent of 10.
- Engineering
- All numbers are displayed using the closest engineering SI Unit.
Chart Export
- The Width and Height in pixels of the PDF representation of the graph to be exported or printed.