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reference:ft_connectivity_csd2transfer [2018/08/23 14:43]
reference:ft_connectivity_csd2transfer [2018/08/23 14:43] (current)
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 +Note that this reference documentation is identical to the help that is displayed in MATLAB when you type "help ft_connectivity_csd2transfer"​.
 +  <a href=/​reference/​ft_connectivity_csd2transfer><​font color=green>​FT_CONNECTIVITY_CSD2TRANSFER</​font></​a>​ computes the transfer-function from frequency domain
 +  data using the Wilson-Burg algorithm. The transfer function can be used for the
 +  computation of directional measures of connectivity,​ such as Granger causality,
 +  partial directed coherence, or directed transfer functions.
 +  Use as
 +    [output] = ft_connectivity_csd2transfer(freq,​ ...)
 +  The input variable freq should be a FieldTrip data structure containing frequency
 +  domain data containing the cross-spectral density computed between all pairs of
 +  channels, thus containing a '​dimord'​ of '​chan_chan_freq(_time)'​.
 +  Additional optional input arguments come as key-value pairs:
 +    numiteration = scalar value (default: 100) the number of iterations
 +    channelcmb ​  = Nx2 cell-array listing the channel pairs for the spectral
 +                     ​factorization. If not defined or empty (default), a
 +                     full multivariate factorization is performed, otherwise
 +                     a multiple pairwise factorization is done.
 +    tol          = scalar value (default: 1e-18) tolerance limit truncating
 +                     the iterations
 +    sfmethod ​    = '​multivariate',​ or '​bivariate'​
 +    stabilityfix = false, or true. zigzag-reduction by means of tapering of the
 +                     ​intermediate time domain representation when computing the
 +                     ​plusoperator
 +  The code for the Wilson-Burg algorithm has been very generously provided by Dr.
 +  Mukesh Dhamala, and Prof. Mingzhou Ding and his group, and has been adjusted for
 +  efficiency. If you use this code for studying directed interactions,​ please cite
 +  the following references:
 +    - M.Dhamala, R.Rangarajan,​ M.Ding, Physical Review Letters 100, 018701 (2008).
 +    - M.Dhamala, R.Rangarajan,​ M.Ding, Neuroimage 41, 354 (2008).
 +  See also <a href=/​reference/​ft_connectivityanalysis><​font color=green>​FT_CONNECTIVITYANALYSIS</​font></​a>​