90 lines
3.7 KiB
Matlab
90 lines
3.7 KiB
Matlab
function opts = makeOptions(int, varargin)
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% Create a JEInterface options set from scratch. Possible fields are:
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%'Display';
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%'MaxFunEvals';'MaxIter';'TolFun';'TolFunEvals';TolX';'TolXEvals', which,
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% except for 'TolFunEvals' and 'TolXEvals', are used similar to the optimset.
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% The latter two are interpreted as the numbers of evaluations required
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% to assume convergence. Default values are TolXEvals=TolFunEvals=200,
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% TolX=TolFun=1e-4, MaxFunEvals uses a default from EvA2.
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% Further options are 'CreateStopBox' and 'NiceSleepTime' which are
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% JE-specific. The 'CreateStopBox' option toggles the GUI box with stop
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% button provided for graceful interruption of an optimization run.
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% In cases without X-forwarding, a deactivation by setting it to 0 may be required,
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% but note that killing optimization may break the threading mechanism. Try stopOptimize with
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% the 'kill' option.
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%
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% 'NiceSleepTime' allows setting a sleep time (in ms) for the concurrent
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% threading. Technically, either the Matlab
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% or the Java thread is always waiting for the other one, which may require
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% full CPU if no sleep time is employed. However, for quick function evaluations,
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% even minor sleep times substantially reduce allover efficiency, so we advice
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% to set small sleep times (e.g. 5 ms) only if a single function evaluation
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% takes considerably longer and leave the sleep time at zero otherwise.
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%
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% Notice that this method creates a parameter set but does not assign it
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% to the interface instance. Use setOptions to do that.
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allfields = {'Display'; 'MaxFunEvals';'MaxIter';'TolFun';'TolFunEvals';...
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'TolX'; 'TolXEvals'; 'CreateStopBox'; 'NiceSleepTime'};
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nvararg=nargin-1;
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if rem(nvararg,2)==1
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error('Pass options in name-value pairs!');
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end
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% create cell array
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structinput = cell(2,length(allfields));
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% fields go in first row
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structinput(1,:) = allfields';
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% []'s go in second row
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structinput(2,:) = {[]};
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% turn it into correctly ordered comma separated list and call struct
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opts = struct(structinput{:});
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stdSet=optimset();
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% standard options:
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opts.('MaxFunEvals') = eva2.OptimizerFactory.getDefaultFitCalls;
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opts.('TolX') = 1e-4;
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opts.('TolXEvals') = 200;
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opts.('TolFun') = 1e-4;
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opts.('TolFunEvals') = 200;
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opts.('CreateStopBox')=1;
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opts.('NiceSleepTime')=0;
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for i=1:nvararg/2
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name=varargin{2*i-1};
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value=varargin{(2*i)};
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% parse arguments
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if ~ischar(name)
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error('Expected char parameter name at index %d!', 2*i+1);
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else
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optIndex=strmatch(name,allfields, 'exact');
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if isempty(optIndex)
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error('Unknown option %s !', name);
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else
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switch name
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case {'TolFunEvals', 'TolXEvals'} % for special fields, integers > 1 are allowed
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if ~isscalar(value) || ~isnumeric(value) || round(value)<1
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error('Invalid value type for %s, expecting positive numeric scalar!', name);
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end;
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value=round(value);
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case 'CreateStopBox'
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if ~isscalar(value) || ~isnumeric(value) || round(value)<0 || round(value)>1
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error('Invalid value type for %s, expecting 0 or 1!', name);
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end;
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value=round(value);
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case 'NiceSleepTime'
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if ~isscalar(value) || ~isnumeric(value) || round(value)<0 ;
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error('Invalid value type for %s, expecting numeric scalar >= 0!', name);
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end;
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value=round(value);
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otherwise % test using optimset
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optimset(stdSet, name, value);
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end
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% assign to struct
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opts.(allfields{optIndex,:}) = value;
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end
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end
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end
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