Pairwise Priority and Consistency Workbench

How to use Pairwise Priority and Consistency Workbench

Construct a positive reciprocal comparison matrix from exactly one declared ratio for each unordered pair. Bounded power iteration estimates its principal right eigenvector; the eigenvalue yields a consistency index without inventing a random-index threshold.

1. Enter model json (schema and units below).
2. Choose the stated convention and check the units and supported model.
3. Calculate, inspect the result, then copy or download it.

Good to know

• Plain decimal JSON numbers or strings, at most six fractional places, magnitude at most 1,000,000,000; raw numeric spellings and duplicate object members are checked. Exact rational arithmetic is capped at 8,192 bits. Text is at most 30,000 characters; a local JSON download preserves exact fractions or full stored approximate numbers. 2–12 labels; ratios from 0.111112 through 9 on the six-place grid. Up to 5,000 iterations with a 1e-13 weight-change criterion. Ratios are subjective inputs, approximate priorities are not objective truth, and no automatic acceptable-consistency or investment decision is made.
• Local calculation only; no input persistence or external lookup. Text/JSON is limited to 30000 characters and output to 1000000 characters. Numeric model inputs and precision/work limits are stated on this page. Approximate JSON numbers retain full stored values; exact arithmetic outputs retain decimal or fraction strings. Unsupported states fail explicitly.
• Educational user-assumption arithmetic only. No live prices, laws, tax rules, quotes or financial advice.