REDUCE

How to use it?

1. Select the size of a pairwise comparison matrix in which you want to reduce CR (Consistency Ratio).
2. Select the threshold of reducing CR:
   - < 0.1 and < 0.05 - CR below these values is considered to be enough for achieving consistency for Pairwise Comparision Matrices,
   - 0 - which means that the result matrix will be fully consistent.
3. Select the algorithm for reducing CR:
   - Xu and Wei - with two values of λ parameter (0.9 and 0.5),
   - Szybowski.
4. Type in values to a matrix:
- Values have to be in ranges (1, ..., 9) and (1/2, ..., 1/9),
- The diagonal of the matrix is filled with ones for default,
- Values at the opposite side of the diagonal are filled automatically with the opposites (e.g., 7 -> 1/7).
You could also generate a matrix filled with random data if you are using the app only for test purposes.
If you want to clear the matrix - just click the "Reset matrix" button.
5. After filling all the fields, the system will return two values: CI and CR for the typed/generated matrix.
6. Click the "Reduce" button, and the matrix with reduced CR will appear below the typed one.
   You could copy it directly to MS Excel or Calc spreadsheet.