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Descriptive statistics

circ_mean_rad() circ_mean_180() circ_mean_360()
Circular mean
circ_sd_rad() circ_sd_360() circ_sd_180()
Circular standard deviation
circ_descr()
A set of descriptive statistics for circular data
weighted_circ_mean() weighted_circ_mean2() weighted_circ_sd() weighted_circ_rho()
Weighted circular parameters
weighted_sem()
Weighted standard error of the mean (SEM_w)

Cardinal biases

remove_cardinal_biases()
Remove cardinal biases
remove_cardinal_biases_discrete()
Remove cardinal biases for data with orientation (color, motion, ...) set in discrete steps

Plotting

circ_loess()
An implementation of circular-linear locally-weighted regression (LOESS)

Miscellanous

angle_diff_rad() angle_diff_360() angle_diff_180() angle_diff_90() angle_diff_180_45() angle_diff_360_90()
Differences between angles in different circular spaces
vm_kappa_to_circ_sd() vm_kappa_to_circ_sd_deg() vm_circ_sd_to_kappa() vm_circ_sd_deg_to_kappa()
Conversion between the circular SD and kappa of von Mises
correct_angle_rad()
Get angle value in [-pi, pi] space
pad_circ()
Pad circular data on both ends
circ_corr()
Circular correlation coefficient
circ_lin_corr()
Circular-linear correlation
density_asymmetry()
Compute asymmetry in weighted probability density
density_asymmetry_discrete()
Compute asymmetry in weighted probability density for discrete data

Datasets

Bae_Luck_2018_data
Data from a motion estimation task
Pascucci_et_al_2019_data
Data from an orientation estimation task