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nowack
2008 Jan 10
3
Cycle Regression Analysis in R?
...etc. but have come up with
nothing so far.
If I am unable to find an existing R package to do so, is there anyone
familiar with fitting sine functions to data. My problem is this:
I have a long time-series of daily SWE estimates (SWE = snow water
equivalence, or the amount of water stored in a snowpack) which follows
a sinusoidal pattern, and I need to estimate the parameters of the sine
function that best fits this data. While there may be many contributing
sine functions and/or linear trends, I am only interested in a single
sine function that most closely fits the data (trends can be remov...