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mapping_R1obs.m
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mapping_R1obs.m
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function Z = mapping_R1obs(type, p, X)
%
% function Z = mapping_R1obs(type, p [, X])
%
% mapping for 4 dof fit
%
% type == 1 => X = mapping(1,p) % forward mapping
% type == 2 => p = mapping(2,p,X) % reverse mapping
% type == 3 => q = mapping(3) % return names of dimensions
% type == 4 => scales = mapping(4) % return scales
%
% X = [ R1obs ];
N = 1;
scales = [ 1];
if(type == 1)
X = zeros(N,1);
X = [1/ p.T1obs];
X = X ./ scales;
Z = X;
elseif(type == 2)
X = X .* scales;
rd = 1/p.T1(2) - X(1);
p.T1(1) = 1/(X(1) - p.kf * rd /(rd + p.kf/p.f));
p.T1obs = 1/X(1);
if(strcmp(p.model,'cz'))
p.beta = 1.0;
else
if(strcmp(p.model,'cz'))
p.beta = 1.0;
else
p = set_T1(p, p.T1(1), 1.0);
end
end
Z = p;
elseif(type == 3)
Z = { 'R1obs' };
elseif(type == 4)
Z = scales;
else
error('Unknown mapping type');
end