- #1
marksman95
- 16
- 2
I have some experimental data, in this case, we performed a study of the Zeeman effect in Cadmium with the use of a Fabry-Perot inferferometer. The data should fit a straight line, but I would like to force the intercept through the origin since the relation between the wavenumber difference and the magnetic field is proportionality.
My problem is that both x and y experimental values have significant uncertanties, and I am not sure of how to calculate the estimated uncertainty of the fit parameter, being the relevant result of the experiment.
The data are the following:
x-----------y
B (mT) \ Δν (1/m)
756 \ 61,25
621 \ 47,06
518 \ 45,30
414 \ 33,54
I've been reading a chapter in Press et al. Numerical Recipes on how to perform the same analysis without forcing the intercept. It seems rather difficult, I wonder if it gets any easier if the intercept is forced, since there is only one fit parameter.
My problem is that both x and y experimental values have significant uncertanties, and I am not sure of how to calculate the estimated uncertainty of the fit parameter, being the relevant result of the experiment.
The data are the following:
x-----------y
B (mT) \ Δν (1/m)
756 \ 61,25
621 \ 47,06
518 \ 45,30
414 \ 33,54
The Attempt at a Solution
I've been reading a chapter in Press et al. Numerical Recipes on how to perform the same analysis without forcing the intercept. It seems rather difficult, I wonder if it gets any easier if the intercept is forced, since there is only one fit parameter.