Q2R: Quaternion to rotation
In AnalyzeFMRI: Functions for Analysis of fMRI Datasets Stored in the ANALYZE or 'NIFTI' Format
Q2R R Documentation
Quaternion to rotation
Description
Generate a (proper) rotation matrix from a quaternion.
Usage
Q2R(Q,qfac)
Arguments
Q
quaternion vector
qfac
qfac nifti field. It is pixdim[1]
Value
The rotation.
See Also
R2Q
Examples
L <- f.read.nifti.header(system.file("example-nifti.hdr", package="AnalyzeFMRI"))
Q <- c(L$quatern.b,L$quatern.c,L$quatern.d)
Q2R(Q,L$pixdim[1])
AnalyzeFMRI documentation built on Aug. 8, 2025, 7:16 p.m.
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| Q2R | R Documentation |
Quaternion to rotation
Description
Generate a (proper) rotation matrix from a quaternion.
Usage
Q2R(Q,qfac)Arguments
Q |
quaternion vector |
qfac |
qfac nifti field. It is pixdim[1] |
Value
The rotation.
See Also
R2Q
Examples
L <- f.read.nifti.header(system.file("example-nifti.hdr", package="AnalyzeFMRI"))
Q <- c(L$quatern.b,L$quatern.c,L$quatern.d)
Q2R(Q,L$pixdim[1])
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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