I have data sets and the sinusoidal model y=fc+fe sin(2π(x-t0)/12) in which fc, fe and t0 are the parameters . I have to calculate the parameter estimation of fc and fe (keep t0 constant). Is there any R library that can do this?
Considering the two parameters of amplitude fc and fe simultaneously, delimit (using the χ2 variation method) the area in that parameter space that contains 95.4% confidence.
