Description
Subtract blank from observed, subtract predictedBlankCorrected for residual, and divide residual by positive signalSd for standardizedResidual.
Immune-assay data can contain raw signals, blanks, gated event counts, dilution labels, and research thresholds. Their units and denominators differ, and arithmetic on supplied values is separate from assay validation or clinical interpretation.
Subtract blank from observed, subtract predictedBlankCorrected for residual, and divide residual by positive signalSd for standardizedResidual.
When to use this tool
Use Immunoassay Blank Standard Curve Residual when you need one transparent research-assay calculation or event-accounting check.
How to use the tool and how it works
- Enter observed, blank, predictedBlankCorrected, signalSd. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read blankCorrected, residual, standardizedResidual. Use the output convention below.
Subtract blank from observed, subtract predictedBlankCorrected for residual, and divide residual by positive signalSd for standardizedResidual.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| observed | Observed | Required. Finite number. |
| blank | Supplied background value on the same signal scale. | Required. Finite number. |
| predictedBlankCorrected | Predicted Blank Corrected | Required. Finite number. |
| signalSd | Signal Sd | Required. Finite number; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| blankCorrected | Blank Corrected | Required. Finite number. |
| residual | Residual | Required. Finite number. |
| standardizedResidual | Standardized Residual | Required. Finite number. |
{
"input": {
"observed": 120,
"blank": 20,
"predictedBlankCorrected": 90,
"signalSd": 5
},
"output": {
"blankCorrected": 100,
"residual": 10,
"standardizedResidual": 2
}
}Limitations and assumptions
- Observed, blank, predicted signal, and spread share one scale; this is one supplied residual rather than a fitted standard curve or validated uncertainty model.
- 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.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Review the complete assay protocol, calibration, controls, uncertainty, and appropriate professional interpretation.
References
Similar or alternative tools
- Serology Research Cutoff Relative Signal
Return (signal-blank)/(cutoff-blank) as relativeSignal and signal-cutoff as margin.
- Stain Batch Reference Slide Gap
Subtract blankSignal from sampleSignal and multiply by targetReference/batchReference, returning corrected signal and normalizationFactor.