region: Confidence Region for Mean Rotation

In heike/rotations: Tools for working with rotational data

Description

Find the radius of a 100α% confidence region for the projected mean

Usage

  region(Qs, method, alpha, ...)

  ## S3 method for class 'Q4'
 region(Qs, method, alpha, ...)

  ## S3 method for class 'SO3'
 region(Rs, method, alpha, ...)

Arguments

Rs,Qs	A n-by-p matrix where each row corresponds to a random rotation in matrix (p=9) or quaternion form (p=4)
method	Character string specifying which type of interval is required
alpha	The alpha level desired, e.g. 0.95 or 0.90
...	Additional arguments

Value

radius of the confidence region centered at the projected mean

References

Rancourt D, Rivest L and Asselin J (2000). "Using orientation statistics to investigate variations in human kinematics." _Journal of the Royal Statistical Society: Series C (Applied Statistics)_, *49*(1), pp. 81-94.

Examples

Rs<-ruars(20,rcayley,kappa=100)
region(Qs,method='rancourt',alpha=0.9)

heike/rotations documentation built on May 17, 2019, 3:24 p.m.