ras.to.talairachras | R Documentation |
Compute MNI talairach coordinates from RAS coords.
ras.to.talairachras(ras_coords, talairach, invert_transform = FALSE)
ras_coords |
nx3 numerical vector, the input surface RAS coordinates. Could be the vertex coordinates of an 'fs.surface' instance, or the RAS coords from a surface label. |
talairach |
the 4x4 numerical talairach matrix, or a character string which will be interpreted as the path to an xfm file containing the matrix (typically '$SUBJECTS_DIR/$subject/mri/transforms/talairach.xfm'). |
invert_transform |
logical, whether to invert the transform. Do not use this, call |
the Talairach RAS coordinates for the given RAS coordinates
You can use this to compute the Talairach coordinate of a voxel, based on its RAS coordinate.
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