function sinfit
Fit a sine curve to a set of data points. The function fit is y(x)=A+B*sin(x+phi)
Syntax
result = sinfit(X, Y, errors, estimate [, chisq])
Arguments
| X: | A vector containing the x values to be fit |
| Y: | A vector containing the y values to be fit (in radians) |
| errors: | The errors in Y |
| estimate: | Initial estimate for the fit of the form [A,B,phi] |
| chisq: | If set to a named variable, the variable is overwritten with the chi-squared of the fit. |
Returns
The returned vector contains the best-fit parameters in the form [A,B,phi,d_A,d_B,d_phi]