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pagegenerator
2012 Feb 13
3
fit data to y~A+B*sin(C*x)
I want to fit discrete data that was measured on a wavegenerator.
In this minimal example i generate some artificial data:
testsin <- 2+ 5 * sin(1:100) #generate sin data
testsin <- testsin+ rnorm(length(testsin), sd = 0.01) #add noise
mydata <- list(X=1:100, Y=testsin) # generate mydata object
nlmod <- nls(X ~ A+B*sin(C* Y), data=mydata, start=l...