Detecting and Fixing Some Common Forecasting Problems: Heteroskedasticity, Multicollinearity, and Autocorrelation

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  • September 24, 2014
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Detecting and Fixing Heteroskedasticity Several tests exist to check for the presence of heteroskedasticity. These tests also are applicable for testing misspecifications and nonlinearities. The simplest approach is to graphically … Continue Reading →

Structural Break Analysis

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  • September 24, 2014
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A structural break tests whether the coefficients in different datasets are equal, and this test is most commonly used in time-series analysis to test for the presence of a structural … Continue Reading →

ROV BizStats

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  • September 24, 2014
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The ROV BizStats tool is a very powerful and fast module in Risk Simulator that is used for running business statistics and analytical models on your data. It covers more … Continue Reading →

Optimization Procedures: Stochastic Optimization

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  • September 17, 2014
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Many algorithms exist to run optimization and many different procedures exist when optimization is coupled with Monte Carlo simulation. In Risk Simulator, there are three distinct optimization procedures and optimization … Continue Reading →

Optimization Procedures: Discrete Binary Optimization

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  • September 17, 2014
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Many algorithms exist to run optimization and many different procedures exist when optimization is coupled with Monte Carlo simulation. In Risk Simulator, there are three distinct optimization procedures and optimization … Continue Reading →

Optimization Procedures: Continuous Optimization

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  • September 17, 2014
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Many algorithms exist to run optimization and many different procedures exist when optimization is coupled with Monte Carlo simulation. In Risk Simulator, there are three distinct optimization procedures and optimization … Continue Reading →

Decision Tree and Related Analytics

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  • September 10, 2014
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Decision Tree Risk Simulator | Decision Tree runs the Decision Tree module (Figure 1), which is used to create and value decision tree models. Additional advanced methodologies and analytics are … Continue Reading →

Genetic Algorithm, Goal Seek, and Single Variable Optimizer

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  • September 10, 2014
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Genetic Algorithm Optimization Genetic Algorithms belong to the larger class of evolutionary algorithms that generate solutions to optimization and search problems using techniques inspired by natural evolution, such as inheritance, … Continue Reading →

Optimization Procedures: Efficient Frontier

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  • September 10, 2014
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Efficient Frontier and Advanced Optimization Settings Figure 1 shows the efficient frontier constraints for optimization. You can get to this interface by clicking on the Efficient Frontier button after you … Continue Reading →

Box Plot and Box-and-Whisker Plot

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  • September 3, 2014
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The Basics of Box-Whiskers Box plots or box-and-whisker plots graphically depict numerical data using their descriptive statistics: the smallest observation (Minimum, or some variation of interquartile range), First Quartile or … Continue Reading →