lect30 - UCF Physics: AST 5765/4762: (Advanced)...

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UCF Physics: AST 5765/4762: (Advanced) Astronomical Data Analysis Fall 2009 Lecture Notes: 30. Interpolation, Power Spectra 1 Check In: 12:30 — 12:35, 5 min Questions? Extension on HW10 due to lack of solutions to HW9 Anyone affected by the physics email server outage? 2 Interpolation: 12:35 — 12:50, 15 min Interpolation is estimating a number based on other, related numbers Uses Finding value of a function away from other data Putting two (or more) datasets on a common grid Reducing/increasing number of data points, resolution, etc. Caveats It’s a LIE! Never forget that. Must always state in papers when using interpolated data Statistical properties differ from uninterpolated data Derivative properties differ from uninterpolated data Extrapolation can lead to suffering! Try not to. Interpolating interpolated data leads to junk. Don’t. Try to avoid guessing or wholesale fabrication of data!
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This note was uploaded on 11/09/2009 for the course AST 4762 taught by Professor Harrington during the Fall '09 term at University of Central Florida.

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lect30 - UCF Physics: AST 5765/4762: (Advanced)...

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