MATLAB: How to re-assign index values for a matrix

indexingmatrix

I have a 6×6 matrix that, instead of being indexed from 1-6, I want to assign a vector to index the matrix.
For example,
k =
     1     3     5     6     3     1
     5     6     7     3     4     5
     1     3     4     5     7     4
     1     4     6     7     8     9
     1     7     6     5     4     3
     1     2     3     4     5     6
v =
     7
     8
    11
    12
    13
    14
How can I assign the values of v as the index to the rows of k?
And then, >> v'
ans =
     7     8    11    12    13    14
as the index for the columns of k?
So that k(7,7)= 1 and k(14,14)= 6 and k(11,11)= 4

Best Answer

The mapping turned out to be simpler and more straightforward than I thought. I was overthinking it.
The mapping function:
y = @(x,n) ceil(mod(x,n+0.1));                      % Mapping Function: x = Index,  n = Row (Column) Size Of Square Matrix
Example:
x = 1:44
n = 6;
idx = y(x,n)
x =
  Columns 1 through 15
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15
  Columns 16 through 30
    16    17    18    19    20    21    22    23    24    25    26    27    28    29    30
  Columns 31 through 44
    31    32    33    34    35    36    37    38    39    40    41    42    43    44
idx =
  Columns 1 through 15
     1     2     3     4     5     6     1     2     3     4     5     6     1     2     3
  Columns 16 through 30
     4     5     6     1     2     3     4     5     6     1     2     3     4     5     6
  Columns 31 through 44
     1     2     3     4     5     6     1     2     3     4     5     6     1     2
... and specifically:
x = [7,24,30,36,40,44];
idx =
     1     6     6     6     4     2
Also, when I tested it, it works for every n>1.
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