Added functions to align, join and split matrices

align.m

+function [Val1,Off1,Val2,Off2] = align(Val1,Off1,Val2,Off2)
+%ALIGN Summary of this function goes here
+%   Detailed explanation goes here
+
+if isempty(Val1)
+    Val1 = Val2;
+    Off1 = Off2;
+elseif ~isempty(Val2)
+    Size1 = size(Val1);
+    Size2 = size(Val2);
+    
+    Max1 = Off1+Size1;
+    Max2 = Off2+Size2;
+    
+    Off_ = min(Off1,Off2);
+    Max_ = max(Max1,Max2);
+    
+    Val1 = padarray(Val1,Off1-Off_,nan,'pre');
+    Val2 = padarray(Val2,Off2-Off_,nan,'pre');
+    
+    Off1 = Off_;
+    Off2 = Off_;
+
+    Val1 = padarray(Val1,Max_-Max1,nan,'post');
+    Val2 = padarray(Val2,Max_-Max2,nan,'post');
+end
+end
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alignJoin.m

+function [Val1,Off1,Val2,Off2] = alignJoin(Val1,Off1,Val2,Off2)
+%ALIGNJOIN Summary of this function goes here
+%   Detailed explanation goes here
+
+if isempty(Val1)
+    Val1 = Val2;
+    Off1 = Off2;
+elseif ~isempty(Val2)
+    Size1 = size(Val1);
+    Size2 = size(Val2);
+    
+    Max1 = Off1+Size1;
+    Max2 = Off2+Size2;
+    
+    Off_ = min(Off1,Off2);
+    Max_ = max(Max1,Max2);
+    
+    Val1 = padarray(Val1,Off1-Off_,nan,'pre');
+    Val2 = padarray(Val2,Off2-Off_,nan,'pre');
+    
+    Off1 = Off_;
+    Off2 = Off_;
+
+    Val1 = padarray(Val1,Max_-Max1,nan,'post');
+    Val2 = padarray(Val2,Max_-Max2,nan,'post');
+    
+    M1 = ~isnan(Val1);
+    M2 = ~isnan(Val2);
+    
+    Val1(M1) = Val1(M1);
+    Val1(M2) = Val2(M2);
+end
+end
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join.m

+function Val1 = join(Val1,Val2)
+%JOIN Summary of this function goes here
+%   Detailed explanation goes here
+
+if isempty(Val1)
+    Val1 = Val2;
+elseif ~isempty(Val2)
+    M1 = ~isnan(Val1);
+    M2 = ~isnan(Val2);
+    
+    Val1(M1) = Val1(M1);
+    Val1(M2) = Val2(M2);
+end
+end
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split.m

+function [M1,M2] = split(M,Mask)
+%SPLIT Summary of this function goes here
+%   Detailed explanation goes here
+
+[M1,M2] = deal(M);
+M1(~Mask) = NaN;
+M2( Mask) = NaN;
+end
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