CALC_COVAR_PRIOR image prior with distance-based interelement covar This is a simplification of exponential_covar_prior.m Reg= calc_covar_prior( inv_model ) Reg => output regularization inv_model => inverse model struct P_type--prior type 1: elements are globally correlated 2: elements within/without electrode rings are correlated to elements in same region. 3: only elements within electrode rings are correlated.
0001 function Reg= calc_covar_prior( inv_model ) 0002 % CALC_COVAR_PRIOR image prior with distance-based interelement covar 0003 % This is a simplification of exponential_covar_prior.m 0004 % Reg= calc_covar_prior( inv_model ) 0005 % Reg => output regularization 0006 % inv_model => inverse model struct 0007 % P_type--prior type 0008 % 1: elements are globally correlated 0009 % 2: elements within/without electrode rings are correlated to elements in same region. 0010 % 3: only elements within electrode rings are correlated. 0011 0012 % (C) 2007, Tao Dai and Andy Adler. Licenced under the GPL Version 2 0013 % $Id: calc_covar_prior.m 3104 2012-06-08 14:46:01Z bgrychtol $ 0014 0015 % get average x,y,z of each element 0016 warning('EIDORS:deprecated','CALC_COVAR_PRIOR is deprecated as of 08-Jun-2012. Use PRIOR_COVAR instead.'); 0017 0018 Reg = prior_covar(inv_model);