MATLAB: Adding data to two matrices for indexing

indexingmatrix

I have 2 matrices Z and Y, both are a 10×1300 matrix and consists of random numbers, how do i add data to the left and right of each element and then use indexing to find Y for a certain value of Z
For example,
     Z [10 1300]  
     Y [10 1300]
One element in Z: 
Z(1,1)=10
z=Z(1,1)
Add data to left and right side, 
z-3,z-2,z-1,z,z+1,z+2,z+3 
Final result: 7,8,9,10,11,12,13
Similar for Y but with different data additions
One element in Y: 
Y(1,1)=20
y=Y(1,1)
Add data to left and right side, 
y+3,y+2,y+1,y,y+1,y+2,y+3 
Final result: 23,22,21,20,21,22,23
Use indexing to find Z=7 then find the respective element from Y would give Y= 23,
Y(find(Z==7))=23
Z=8,Y=22
Z=9,Y=21
Z=10,Y=20
Z=11,Y=21
Z=12,Y=22
Z=13,Z=23

Best Answer

>> Z = [1,9;6,1];
>> cell2mat(arrayfun(@(m)m-3:+1:m+3,Z,'uni',0))
ans =
          -2          -1           0           1           2           3           4           6           7           8           9          10          11          12
           3           4           5           6           7           8           9          -2          -1           0           1           2           3           4
>> Y = [9,1;4,9];
>> cell2mat(arrayfun(@(m)[m+3:-1:m,m+1:m+3],Y,'uni',0))
ans =
          12          11          10           9          10          11          12           4           3           2           1           2           3           4
           7           6           5           4           5           6           7          12          11          10           9          10          11          12
>>
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