Add line estimation model
Add RANSAC algorithm
Add circle estimator model and fix some other bugs
Fix doc string of ransac function
Add ellipse estimator model
Rename variables for better readability
Add todo comment
Add example to ransac function
Add imports of fit to subpackage
Fix example of ransac
Reduce default number of max trials
Add analytical jacobian for ellipse model for 100x speedup
Reduce number of function calls for speedup
Calculate initial guess for closest point on ellipse for speedup
Replace numpy with math for scalar functions and remove Dfun from ellipse residuals for speedup
Fix typos
Add input data shape test to avoid out of memory Jacobians
Fix bug in predict_x of line model
Return combined xy-coordinate array with arbitrary dimensions in predict_xy
Fix bug in ellipse model estimation due to changed predict_xy output