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Identification of Haptic Based Guiding Using Hard Reins

Fig 3

R² values from 1^st order to 4^th order polynomials for the guider and the follower.

reactive models (dashed line) and predictive models (solid line): (A) and (C) are the R² value variation of the reactive and predictive from 1^st to 4^th order polynomials over trials for the guider and the follower respectively. (B) and (D) are the percentage (%) differences of R² values of 2^nd to 4^th order polynomials with respect to 1st order polynomial for the guider’s and the follower’s control policies respectively: 1st to 2^nd order (blue), 1st to 3^rd order (black), 1^st to 4^th order (green).

doi: https://doi.org/10.1371/journal.pone.0132020.g003