estimatePhi             estimatePhi
findGoodPoints          Function to find good points for estimation of
                        phi
getDefaultIsThermallingFunction
                        A function to generate an isThermallingFunction
getIsFocalPointFunction
                        A function to generate isFocalPoint functions
getIsSamplingRegularFunction
                        A function to generate functions used to check
                        if a segment is regular
getTrackSegments        An helper function to extract trajectory
                        segments for wind estimation from a track
getWindEstimate         Estimate wind speed from a sample of ground
                        speeds
getWindEstimates        Generate wind estimates for a trajectories or
                        data frame with wind speeds
getWindowSizeLR         Generate arguments for window size around focal
                        point
storks                  Example stork data.
windEstimLogLik         Estimate the log likelihood
