Fractional Rank Tie Table
Assign one-based ascending fractional average numeric ranks; exact numeric ties are preserved according to the stated policy.
Description
Assign one-based ascending fractional average numeric ranks; exact numeric ties are preserved according to the stated policy.
Fractional ranks give tied items the average of the one-based positions their block occupies.
When to use this tool
Assign one-based ascending fractional average numeric ranks; exact numeric ties are preserved according to the stated policy.
- Prepare the supplied values fields for this operation.
- Compare the complete example with the representation used by your own input before carrying the result into another step.
How to use the tool and how it works
- Enter values. Use the exact text syntax, units and index conventions explained below.
- Run the tool. If input validation fails, correct the supplied fields before interpreting any result.
- Read result.ranks. Interpret false, null and empty lists using the distinctions below; they can be valid outputs.
Stable-sort values, find each tie block and assign (zero-based start plus exclusive end plus one)/2 to every member. Return ranks in original input order.1
| Input field | Meaning and representation | Accepted input |
|---|---|---|
| values | values. | List of finite numbers; at most 128 entries |
| Output field | Interpretation |
|---|---|
| result | Object containing the named outputs below. |
| result.ranks | The ranks list in the ordering and representation described above. |
{
"input": {
"values": [
30,
10,
10,
20
]
},
"output": {
"result": {
"ranks": [
4,
1.5,
1.5,
3
]
}
}
}Limitations and assumptions
- Exact equality defines ties. This is not dense or competition ranking and does not calculate a percentile.
- All declared input fields are required and unexpected top-level fields are rejected. Numbers must be finite; lists are limited to 128 entries and ordinary text fields to 8,192 UTF-16 code units, with tighter limits where stated.
- JSON text inputs must parse within bounded nesting and size limits. Numeric outputs outside the safe finite range are rejected; large exact integer results use decimal strings. Indexes and half-open spans are zero-based unless a rank is explicitly described as one-based.
Alternative or Complementary methods
Choose the tie policy and whether you need values, original indexes, sorted positions or one-based ranks. Use a complete sort verifier when a local stability or adjacent-comparison check is insufficient.
References
Similar or alternative tools
- Competition Rank Tie Table
Assign one-based ascending competition numeric ranks; exact numeric ties are preserved according to the stated policy.
- Dense Rank Tie Table
Assign one-based ascending dense numeric ranks; exact numeric ties are preserved according to the stated policy.