talairachras.to.ras | R Documentation |
Compute MNI talairach coordinates from RAS coords.
talairachras.to.ras(tal_ras_coords, talairach)
tal_ras_coords |
coordinate matrix in Talairach RAS space |
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'). |
the Talairach RAS coordinates for the given RAS coordinates. They are based on a linear transform.
You can use this to compute the Talairach coordinate of a voxel, based on its RAS coordinate.
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