Department of Computer Science

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Presentation transcript:

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

Computing Mean – Regression Try every possible values from min to max Compute SSE (Sum of Square Error). 𝑖=𝑚𝑖𝑛 𝑚𝑎𝑥 𝑋𝑖 −𝑣 2 Determine the value that minimize the SSE

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

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

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

StepMiner – Regression Try every possible value of threshold from min to max Compute SSE (Sum of Square Error) based on two means. 𝑖=𝑚𝑖𝑛 𝑚𝑎𝑥 𝑋𝑖 −𝑣 2 Determine the value that minimize the SSE

StepMiner Statistics