annotate toolboxes/FullBNT-1.0.7/bnt/CPDs/@tabular_CPD/set_fields.m @ 0:cc4b1211e677 tip

initial commit to HG from Changeset: 646 (e263d8a21543) added further path and more save "camirversion.m"
author Daniel Wolff
date Fri, 19 Aug 2016 13:07:06 +0200
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Daniel@0 1 function CPD = set_fields(CPD, varargin)
Daniel@0 2 % SET_PARAMS Set the parameters (fields) for a tabular_CPD object
Daniel@0 3 % CPD = set_params(CPD, name/value pairs)
Daniel@0 4 %
Daniel@0 5 % The following optional arguments can be specified in the form of name/value pairs:
Daniel@0 6 %
Daniel@0 7 % CPT, prior, clamped, counts
Daniel@0 8 %
Daniel@0 9 % e.g., CPD = set_params(CPD, 'CPT', 'rnd')
Daniel@0 10
Daniel@0 11 args = varargin;
Daniel@0 12 nargs = length(args);
Daniel@0 13 for i=1:2:nargs
Daniel@0 14 switch args{i},
Daniel@0 15 case 'CPT',
Daniel@0 16 if ischar(args{i+1})
Daniel@0 17 switch args{i+1}
Daniel@0 18 case 'unif', CPD.CPT = mk_stochastic(myones(CPD.sizes));
Daniel@0 19 case 'rnd', CPD.CPT = mk_stochastic(myrand(CPD.sizes));
Daniel@0 20 otherwise, error(['invalid type ' args{i+1}]);
Daniel@0 21 end
Daniel@0 22 elseif isscalarBNT(args{i+1})
Daniel@0 23 p = args{i+1};
Daniel@0 24 k = CPD.sizes(end);
Daniel@0 25 % Bug fix by Hervé Boutrouille 10/1/01
Daniel@0 26 CPD.CPT = myreshape(sample_dirichlet(p*ones(1,k), prod(CPD.sizes(1:end-1)), CPD.sizes));
Daniel@0 27 %CPD.CPT = myreshape(sample_dirichlet(p*ones(1,k), prod(CPD.sizes(1:end-1))), CPD.sizes);
Daniel@0 28 else
Daniel@0 29 CPD.CPT = myreshape(args{i+1}, CPD.sizes);
Daniel@0 30 end
Daniel@0 31
Daniel@0 32 case 'prior',
Daniel@0 33 if ischar(args{i+1}) & strcmp(args{i+1}, 'unif')
Daniel@0 34 CPD.prior = myones(CPD.sizes);
Daniel@0 35 elseif isscalarBNT(args{i+1})
Daniel@0 36 CPD.prior = args{i+1} * normalise(myones(CPD.sizes));
Daniel@0 37 else
Daniel@0 38 CPD.prior = myreshape(args{i+1}, CPD.sizes);
Daniel@0 39 end
Daniel@0 40
Daniel@0 41 %case 'clamped', CPD.clamped = strcmp(args{i+1}, 'yes');
Daniel@0 42 %case 'clamped', CPD = set_clamped(CPD, strcmp(args{i+1}, 'yes'));
Daniel@0 43 case 'clamped', CPD = set_clamped(CPD, args{i+1});
Daniel@0 44
Daniel@0 45 case 'counts', CPD.counts = args{i+1};
Daniel@0 46
Daniel@0 47 otherwise,
Daniel@0 48 %error(['invalid argument name ' args{i}]);
Daniel@0 49 end
Daniel@0 50 end
Daniel@0 51
Daniel@0 52