public void CreateWithCoefficientOfVariation_WithParameters_CreateNewInstance()
{
// Setup
var random = new Random(21);
double mean = random.NextDouble();
double coefficientOfVariation = random.NextDouble();
double shift = random.NextDouble();
// Call
PercentileBasedDesignVariableCalculator calculator =
LogNormalDistributionDesignVariableCalculator.CreateWithCoefficientOfVariation(mean, coefficientOfVariation, shift);
// Assert
Assert.IsInstanceOf <LogNormalDistributionDesignVariableCalculator>(calculator);
}
public void DetermineDesignValue_DifferentValues_BothTypesOfCalculatorsReturnsExpectedValue(
double mean,
double standardDeviation,
double shift,
double percentile,
double expectedValue)
{
// Setup
PercentileBasedDesignVariableCalculator calculatorStd = LogNormalDistributionDesignVariableCalculator.CreateWithStandardDeviation(mean, standardDeviation, shift);
PercentileBasedDesignVariableCalculator calculatorCov = LogNormalDistributionDesignVariableCalculator.CreateWithCoefficientOfVariation(mean, standardDeviation / (mean - shift), shift);
// Call
double stdDesignValue = calculatorStd.GetDesignValue(percentile);
double covDesignValue = calculatorCov.GetDesignValue(percentile);
// Assert
Assert.AreEqual(expectedValue, stdDesignValue, 1e-8);
Assert.AreEqual(expectedValue, covDesignValue, 1e-8);
}