time   calls  line
                235 function checkfield(field,value,optimtbx)
                236 %CHECKFIELD Check validity of structure field contents.
                237 %   CHECKFIELD('field',V,OPTIMTBX) checks the contents of the specified
                238 %   value V to be valid for the field 'field'. OPTIMTBX indicates if 
                239 %   the Optimization Toolbox is on the path.
                240 %
                241 
                242 % empty matrix is always valid
  0.03    6880  243 if isempty(value) 
                244     return
                245 end
                246 
                247 % See if it is one of the valid MATLAB fields.  It may be both an Optim
                248 % and MATLAB field, e.g. MaxFunEvals, in which case the MATLAB valid
                249 % test may fail and the Optim one may pass.
  0.05    6880  250 validfield = true; 
  0.01    6880  251 switch field 
  0.02    6880  252     case {'TolFun'} % real scalar 
                253         [validvalue, errmsg, errid] = nonNegReal(field,value);
          6880  254     case {'TolX'} % real scalar 
                255         % this string is for LSQNONNEG
                256         [validvalue, errmsg, errid] = nonNegReal(field,value,'10*eps*norm(c,1)*length(c)');
  0.02    6880  257     case {'Display'} % several character strings 
  0.03    1720  258         [validvalue, errmsg, errid] = displayType(field,value); 
          5160  259     case {'MaxFunEvals','MaxIter'} % integer including inf or default string 
                260         % this string is for FMINSEARCH
  0.07    3440  261         [validvalue, errmsg, errid] = nonNegInteger(field,value,'200*numberofvariables'); 
          1720  262     case {'FunValCheck'} % off,on 
                263         [validvalue, errmsg, errid] = onOffType(field,value);
          1720  264     case {'OutputFcn','PlotFcns'}% function 
                265         [validvalue, errmsg, errid] = functionOrCellArray(field,value);
  0.02    1720  266     otherwise 
          1720  267         validfield = false;   
          1720  268         validvalue = false; 
  0.03    1720  269         errmsg = sprintf('Unrecognized parameter name ''%s''.', field); 
  0.01    1720  270         errid = 'MATLAB:optimset:checkfield:InvalidParamName'; 
          1720  271 end 
                272 
  0.01    6880  273 if validvalue  
  0.01    5160  274     return; 
  0.02    1720  275 elseif ~optimtbx && validfield   
                276     % Throw the MATLAB invalid value error
                277     error(errid, errmsg);
          1720  278 else % Check if valid for Optim Tbx 
  0.19    1720  279     [optvalidvalue, opterrmsg, opterrid, optvalidfield] = optimoptioncheckfield(field,value); 
          1720  280     if optvalidvalue 
          1720  281         return; 
                282     elseif optvalidfield
                283         % Throw the Optim invalid value error
                284         ME = MException(opterrid,opterrmsg);
                285         throwAsCaller(ME);
                286     else % Neither field nor value is valid for Optim
                287         % Throw the MATLAB invalid value error (can't be invalid field for
                288         % MATLAB & Optim or would have errored already in optimset).
                289         ME = MException(errid,errmsg);
                290         throwAsCaller(ME);
                291     end
                292 end

Other subfunctions in this file are not included in this listing.