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reference:ft_volumewrite [2018/08/23 14:43]
reference:ft_volumewrite [2018/08/23 14:43] (current)
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 +=====  FT_VOLUMEWRITE =====
 +Note that this reference documentation is identical to the help that is displayed in MATLAB when you type "help ft_volumewrite"​.
 +  <a href=/​reference/​ft_volumewrite><​font color=green>​FT_VOLUMEWRITE</​font></​a>​ exports anatomical or functional volume data to a Analyze
 +  or BrainVoyager file. The data in the resulting file(s) can be
 +  further analyzed and/or visualized in MRIcro, SPM, BrainVoyager,​
 +  AFNI or similar packages.
 +  Use as
 +    ft_volumewrite(cfg,​ volume)
 +  where the input volume structure should represent an anatomical MRI
 +  that was for example obtained from <a href=/​reference/​ft_read_mri><​font color=green>​FT_READ_MRI</​font></​a>,​ the source
 +  reconstruction results from <a href=/​reference/​ft_sourceanalysis><​font color=green>​FT_SOURCEANALYSIS</​font></​a>,​ the statistical
 +  results from <a href=/​reference/​ft_sourcestatistics><​font color=green>​FT_SOURCESTATISTICS</​font></​a>​ or an otherwise processed anatomical
 +  or functional volume.
 +  The configuration structure should contain the following elements
 +    cfg.parameter ​    = string, describing the functional data to be processed,
 +                          e.g. '​pow',​ '​coh',​ '​nai'​ or '​anatomy'​
 +    cfg.filename ​     = filename without the extension
 +    cfg.filetype ​     = '​analyze',​ '​nifti',​ '​nifti_img',​ '​analyze_spm',​ '​mgz',​
 +                          '​vmp'​ or '​vmr'​
 +    cfg.vmpversion ​   = 1 or 2 (default) version of the vmp-format to use
 +  The default filetype is '​nifti',​ which means that a single *.nii file
 +  will be written using the SPM8 toolbox. The '​nifti_img'​ filetype uses SPM8 for
 +  a dual file (*.img/​*.hdr) nifti-format file.
 +  The analyze, analyze_spm,​ nifti, nifti_img and mgz filetypes support a homogeneous
 +  transformation matrix, the other filetypes do not support a homogeneous transformation
 +  matrix and hence will be written in their native coordinate system.
 +  You can specify the datatype for the analyze_spm and analyze formats using
 +    cfg.datatype ​     = '​bit1',​ '​uint8',​ '​int16',​ '​int32',​ '​float'​ or '​double'​
 +  By default, integer datatypes will be scaled to the maximum value of the
 +  physical or statistical parameter, floating point datatypes will not be
 +  scaled. This can be modified with
 +    cfg.scaling ​      = '​yes'​ or '​no'​
 +  Optional configuration items are
 +    cfg.downsample ​   = integer number (default = 1, i.e. no downsampling)
 +    cfg.fiducial.nas ​ = [x y z] position of nasion
 +    cfg.fiducial.lpa ​ = [x y z] position of LPA
 +    cfg.fiducial.rpa ​ = [x y z] position of RPA
 +    cfg.markfiducial ​ = '​yes'​ or '​no',​ mark the fiducials
 +    cfg.markorigin ​   = '​yes'​ or '​no',​ mark the origin
 +    cfg.markcorner ​   = '​yes'​ or '​no',​ mark the first corner of the volume
 +  To facilitate data-handling and distributed computing you can use
 +    cfg.inputfile ​  ​= ​ ...
 +  If you specify this option the input data will be read from a *.mat
 +  file on disk. This mat files should contain only a single variable named '​data',​
 +  corresponding to the input structure.
 +  See also <a href=/​reference/​ft_sourceanalysis><​font color=green>​FT_SOURCEANALYSIS</​font></​a>,​ <a href=/​reference/​ft_sourcestatistics><​font color=green>​FT_SOURCESTATISTICS</​font></​a>,​ <a href=/​reference/​ft_sourceinterpolate><​font color=green>​FT_SOURCEINTERPOLATE</​font></​a>​