Linear least squares - PowerPoint PPT Presentation

Unisys

Unisys. “A Forecasting Method that Worked” Hossam Zaki hossam.zaki@unisys.com AGIFORS RYMSG, NY March 2000 . Presentation Outline. Part 1. RM for One-Way Truck Rental Part 2. Methods That Did Not Work Part 3. A Method That Worked Part 4. Conclusions Q&amp;A.

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Data Modeling and Least Squares Fitting

Data Modeling and Least Squares Fitting. COS 323. Data Modeling. Given: data points, functional form, find constants in function Example: given (x i , y i ), find line through them; i.e., find a and b in y = ax+b. y=ax+b. (x 6 ,y 6 ). (x 3 ,y 3 ). (x 5 ,y 5 ). (x 1 ,y 1 ). (x 7 ,y 7 ).

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Scientific Computing

Scientific Computing. Linear Least Squares. Interpolation vs Approximation. Recall : Given a set of (x,y) data points, Interpolation is the process of finding a function (usually a polynomial) that passes through these data points. . Interpolation vs Approximation.

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