Tooth Mark to Tool Mark Ratio Checker
Compare caller classified tooth/tool-marked bone prevalence with co-marked overlap retained; observed-bone ratios do not determine predator/human sequence or agents.
Description
A bone may bear both tooth and tool marks.
A bone may bear both tooth and tool marks. Co-marked specimens belong to both prevalence numerators but only once in the observable-bone denominator.
Compare caller classified tooth/tool-marked bone prevalence with co-marked overlap retained; observed-bone ratios do not determine predator/human sequence or agents.
When to use Tooth Mark to Tool Mark Ratio Checker
Use this tool to compare caller classified tooth/tool-marked bone prevalence with co-marked overlap retained; observed-bone ratios do not determine predator/human sequence or agents.
Prepare the fossil measurements or occurrence records and the chosen calibration parameters. Retain the stated coordinate, age and measurement conventions.
How to use Tooth Mark to Tool Mark Ratio Checker and understand its results
- Prepare the fossil measurements or occurrence records and the chosen calibration parameters. Retain the stated coordinate, age and measurement conventions.
- Enter toothOnlyMarkedBoneCount, toolOnlyMarkedBoneCount, bothMarkedBoneCount, unmarkedObservableBoneCount using the field table and calculation rules, then run the tool.
- Read toothMarkedObservableBoneFraction, toolMarkedObservableBoneFraction, toothToToolMarkedBoneRatio, coMarkedObservableBoneFraction. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| toothOnlyMarkedBoneCount | Tooth only marked bone count | integer | Required |
| toolOnlyMarkedBoneCount | Tool only marked bone count | integer | Required |
| bothMarkedBoneCount | Both marked bone count | integer | Required |
| unmarkedObservableBoneCount | Unmarked observable bone count | integer | Required |
Supply nonnegative integer counts for four disjoint categories and require positive tool-marked count. Return tooth and tool prevalence, their ratio and co-marked prevalence over all observable bones.1
tooth/tool ratio = (tooth-only + both)/(tool-only + both) Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| toothMarkedObservableBoneFraction | Tooth marked observable bone fraction | number |
| toolMarkedObservableBoneFraction | Tool marked observable bone fraction | number |
| toothToToolMarkedBoneRatio | Tooth to tool marked bone ratio | number |
| coMarkedObservableBoneFraction | Co marked observable bone fraction | number |
{
"input": {
"toothOnlyMarkedBoneCount": 2,
"toolOnlyMarkedBoneCount": 4,
"bothMarkedBoneCount": 2,
"unmarkedObservableBoneCount": 2
},
"output": {
"toothMarkedObservableBoneFraction": 0.4,
"toolMarkedObservableBoneFraction": 0.6,
"toothToToolMarkedBoneRatio": 0.6666666666666666,
"coMarkedObservableBoneFraction": 0.2
}
}Limitations and assumptions
Observed marks do not establish agent identity or processing sequence.
Numbers and computed results must be finite; overflow produces an error. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Trampling Mark Misidentification Flag Checker: Apply explicit caller shallow-mark/intersection confound screen; a flag preserves uncertain mark attribution and is not an automated trampling or cut-mark diagnosis. For a complementary task, use Fragmentation Index Bone Assemblage: Summarize observed fragment multiplicity on independently refitted elements and retain unrefittable coverage; unidentified pieces do not become inferred elements or breakage histories.
References
-
Tooth Mark to Tool Mark Ratio Checker — tool.io
Similar or alternative tools
- Trampling Mark Misidentification Flag Checker
Apply explicit caller shallow-mark/intersection confound screen; a flag preserves uncertain mark attribution and is not an automated trampling or cut-mark diagnosis.
- Fragmentation Index Bone Assemblage
Summarize observed fragment multiplicity on independently refitted elements and retain unrefittable coverage; unidentified pieces do not become inferred elements or breakage histories.