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Department of Computer Science

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Presentation on theme: "Department of Computer Science"β€” Presentation transcript:

1 Department of Computer Science
StepMiner Analysis Debashis Sahoo Department of Computer Science CSE291 – H00 – Lecture 10

2 Computing Mean – Regression
Try every possible values from min to max Compute SSE (Sum of Square Error). 𝑖=π‘šπ‘–π‘› π‘šπ‘Žπ‘₯ 𝑋𝑖 βˆ’π‘£ 2 Determine the value that minimize the SSE

3 Estimating the mean Student’s t distribution Degrees of freedom
(X – mu)/sigma/sqrt(n) Degree of freedom n - 1

4 Estimating Sum of Squares
Chi-squared distribution Sum of squares of independent standard normal distribution

5 Ratio of Sum of Squares F-distribution
Ratio of two Chi-sq distribution

6 StepMiner – Regression
Try every possible value of threshold from min to max Compute SSE (Sum of Square Error) based on two means. 𝑖=π‘šπ‘–π‘› π‘šπ‘Žπ‘₯ 𝑋𝑖 βˆ’π‘£ 2 Determine the value that minimize the SSE

7 StepMiner Statistics


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