zebrafish {NPCirc} | R Documentation |
The data consists on measurements from an experimental study on larval zebrafish, which were startled by an imitating predator consisting on a robot disguised as an adult zebrafish. The dataset includes 502 observations corresponding to the escape directions of each fish and the angles in which the zebrafish perceive the threat.
data("zebrafish")
A data frame with 502 observations on the following 2 variables.
stimulus
A numeric vector containing the angles of stimulus (in radians)
res_angle
A numeric vector containing the directions of escape (in radians)
Analysis of the zebrafish data with circular regression methods can be seen in Alonso-Pena et al. (2022).
The data were obtained from the Dryad Digital Repository doi:10.5061/dryad.47mq9 and first analyzed in Nair et al. (2017).
Nair, A., Changsing, K., Stewart, W.J. and McHenry, M.J. (2017). Fish prey change strategy with the direction of a threat. Proceedings of the Royal Society B: Biological Sciences, 284, 20170393.
Alonso-Pena, M. and Crujeiras, R. M. (2022). Analizing animal escape data with circular nonparametric multimodal regression. Annals of Applied Statistics. (To appear).
data(zebrafish)