Daniel@0: function [errorcode,out1,out2,out3,out4] = distchck(nparms,arg1,arg2,arg3,arg4)
Daniel@0: %DISTCHCK Checks the argument list for the probability functions.
Daniel@0: 
Daniel@0: %   B.A. Jones  1-22-93
Daniel@0: %   Copyright (c) 1993-98 by The MathWorks, Inc.
Daniel@0: %   $Revision: 1.1.1.1 $  $Date: 2005/04/26 02:29:18 $
Daniel@0: 
Daniel@0: errorcode = 0;
Daniel@0: 
Daniel@0: if nparms == 1
Daniel@0:     out1 = arg1;
Daniel@0:     return;
Daniel@0: end
Daniel@0:     
Daniel@0: if nparms == 2
Daniel@0:     [r1 c1] = size(arg1);
Daniel@0:     [r2 c2] = size(arg2);
Daniel@0:     scalararg1 = (prod(size(arg1)) == 1);
Daniel@0:     scalararg2 = (prod(size(arg2)) == 1);
Daniel@0:     if ~scalararg1 & ~scalararg2
Daniel@0:         if r1 ~= r2 | c1 ~= c2
Daniel@0:             errorcode = 1;
Daniel@0:             return;         
Daniel@0:         end     
Daniel@0:     end
Daniel@0:     if scalararg1
Daniel@0:         out1 = arg1(ones(r2,1),ones(c2,1));
Daniel@0:     else
Daniel@0:         out1 = arg1;
Daniel@0:     end
Daniel@0:     if scalararg2
Daniel@0:         out2 = arg2(ones(r1,1),ones(c1,1));
Daniel@0:     else
Daniel@0:         out2 = arg2;
Daniel@0:     end
Daniel@0: end
Daniel@0:     
Daniel@0: if nparms == 3
Daniel@0:     [r1 c1] = size(arg1);
Daniel@0:     [r2 c2] = size(arg2);
Daniel@0:     [r3 c3] = size(arg3);
Daniel@0:     scalararg1 = (prod(size(arg1)) == 1);
Daniel@0:     scalararg2 = (prod(size(arg2)) == 1);
Daniel@0:     scalararg3 = (prod(size(arg3)) == 1);
Daniel@0: 
Daniel@0:     if ~scalararg1 & ~scalararg2
Daniel@0:         if r1 ~= r2 | c1 ~= c2
Daniel@0:             errorcode = 1;
Daniel@0:             return;         
Daniel@0:         end
Daniel@0:     end
Daniel@0: 
Daniel@0:     if ~scalararg1 & ~scalararg3
Daniel@0:         if r1 ~= r3 | c1 ~= c3
Daniel@0:             errorcode = 1;
Daniel@0:             return;                 
Daniel@0:         end
Daniel@0:     end
Daniel@0: 
Daniel@0:     if ~scalararg3 & ~scalararg2
Daniel@0:         if r3 ~= r2 | c3 ~= c2
Daniel@0:             errorcode = 1;
Daniel@0:             return;         
Daniel@0:         end
Daniel@0:     end
Daniel@0: 
Daniel@0:     if ~scalararg1
Daniel@0:       out1 = arg1;
Daniel@0:     end
Daniel@0:     if ~scalararg2
Daniel@0:       out2 = arg2;
Daniel@0:     end
Daniel@0:     if ~scalararg3
Daniel@0:       out3 = arg3;
Daniel@0:     end
Daniel@0:     rows = max([r1 r2 r3]);
Daniel@0:    columns = max([c1 c2 c3]);  
Daniel@0:        
Daniel@0:     if scalararg1
Daniel@0:         out1 = arg1(ones(rows,1),ones(columns,1));
Daniel@0:     end
Daniel@0:    if scalararg2
Daniel@0:         out2 = arg2(ones(rows,1),ones(columns,1));
Daniel@0:    end
Daniel@0:    if scalararg3
Daniel@0:        out3 = arg3(ones(rows,1),ones(columns,1));
Daniel@0:    end
Daniel@0:      out4 =[];
Daniel@0:     
Daniel@0: end
Daniel@0: 
Daniel@0: if nparms == 4
Daniel@0:     [r1 c1] = size(arg1);
Daniel@0:     [r2 c2] = size(arg2);
Daniel@0:     [r3 c3] = size(arg3);
Daniel@0:     [r4 c4] = size(arg4);
Daniel@0:     scalararg1 = (prod(size(arg1)) == 1);
Daniel@0:     scalararg2 = (prod(size(arg2)) == 1);
Daniel@0:     scalararg3 = (prod(size(arg3)) == 1);
Daniel@0:     scalararg4 = (prod(size(arg4)) == 1);
Daniel@0: 
Daniel@0:     if ~scalararg1 & ~scalararg2
Daniel@0:         if r1 ~= r2 | c1 ~= c2
Daniel@0:             errorcode = 1;
Daniel@0:             return;         
Daniel@0:         end
Daniel@0:     end
Daniel@0: 
Daniel@0:     if ~scalararg1 & ~scalararg3
Daniel@0:         if r1 ~= r3 | c1 ~= c3
Daniel@0:             errorcode = 1;
Daniel@0:             return;                 
Daniel@0:         end
Daniel@0:     end
Daniel@0: 
Daniel@0:     if ~scalararg1 & ~scalararg4
Daniel@0:         if r1 ~= r4 | c1 ~= c4
Daniel@0:             errorcode = 1;
Daniel@0:             return;                 
Daniel@0:         end
Daniel@0:     end
Daniel@0: 
Daniel@0:     if ~scalararg3 & ~scalararg2
Daniel@0:         if r3 ~= r2 | c3 ~= c2
Daniel@0:             errorcode = 1;
Daniel@0:             return;         
Daniel@0:         end
Daniel@0:     end
Daniel@0: 
Daniel@0:     if ~scalararg4 & ~scalararg2
Daniel@0:         if r4 ~= r2 | c4 ~= c2
Daniel@0:             errorcode = 1;
Daniel@0:             return;         
Daniel@0:         end
Daniel@0:     end
Daniel@0: 
Daniel@0:     if ~scalararg3 & ~scalararg4
Daniel@0:         if r3 ~= r4 | c3 ~= c4
Daniel@0:             errorcode = 1;
Daniel@0:             return;         
Daniel@0:         end
Daniel@0:     end
Daniel@0: 
Daniel@0: 
Daniel@0:     if ~scalararg1
Daniel@0:        out1 = arg1;
Daniel@0:     end
Daniel@0:     if ~scalararg2
Daniel@0:        out2 = arg2;
Daniel@0:     end
Daniel@0:     if ~scalararg3
Daniel@0:       out3 = arg3;
Daniel@0:     end
Daniel@0:     if ~scalararg4
Daniel@0:       out4 = arg4;
Daniel@0:     end
Daniel@0:  
Daniel@0:    rows = max([r1 r2 r3 r4]);
Daniel@0:    columns = max([c1 c2 c3 c4]);     
Daniel@0:     if scalararg1
Daniel@0:        out1 = arg1(ones(rows,1),ones(columns,1));
Daniel@0:    end
Daniel@0:    if scalararg2
Daniel@0:        out2 = arg2(ones(rows,1),ones(columns,1));
Daniel@0:    end
Daniel@0:    if scalararg3
Daniel@0:        out3 = arg3(ones(rows,1),ones(columns,1));
Daniel@0:    end
Daniel@0:    if scalararg4
Daniel@0:        out4 = arg4(ones(rows,1),ones(columns,1));
Daniel@0:    end
Daniel@0: end
Daniel@0: