Description
Map a source label to a supplied blinded label.
Allocation bookkeeping distinguishes arm counts, indexing and vocabulary matches from generation of a concealed random sequence. Floored targets can leave unassigned remainders, and a local balance score does not establish that an allocation method protects a trial from selection bias.
Map a source label to a supplied blinded label.
When to use this tool
Use Blinded Label Permutation Index when checking the stated clinical-research record, allocation, timing, analysis or evidence-basis convention.
How to use the tool and how it works
- Enter sourceLabels, blindedLabels, requestedSource. Keep parallel arrays aligned. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read permutationIndex, blindedLabel. Use the output convention below.
Map a source label to a supplied blinded label. Require aligned unique source/blinded labels and a recognized requestedSource; permutationIndex is the source position, blindedLabel is the paired label.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| sourceLabels | Source Labels | Required. Array of text; maximum UTF-16 length 8192; maximum items 256. |
| blindedLabels | Blinded Labels | Required. Array of text; maximum UTF-16 length 8192; maximum items 256. |
| requestedSource | Requested Source | Required. Text; maximum UTF-16 length 8192. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| permutationIndex | Permutation Index | Required. Safe integer. |
| blindedLabel | Blinded Label | Required. Text; maximum UTF-16 length 8192. |
{
"input": {
"sourceLabels": [
"A",
"B",
"C"
],
"blindedLabels": [
"X",
"Z",
"Y"
],
"requestedSource": "B"
},
"output": {
"permutationIndex": 1,
"blindedLabel": "Z"
}
}Limitations and assumptions
- This exposes the supplied mapping; no random permutation, secure blinding or access authorization is generated.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
Alternative or Complementary methods
Use the complete approved protocol, authenticated source records and qualified clinical/statistical oversight for actual trial design, conduct and interpretation.
References
Similar or alternative tools
- Randomization Stratum Index
Look up a serialized factor tuple in supplied strata.
- Research Randomization Block Slot Index
Return block and slot coordinates for an indexed subject.