Description
Apply a supplied group-mean subtraction and grand-mean restoration.
Econometric calculations separate supplied residuals, regressors, weights, restrictions, panel groups and reference periods. One score or moment contribution is not a fitted estimator, and one scalar covariance term is not a standard error. Unit rescaling and event-time arithmetic preserve conventions without establishing model identification or causal interpretation.
Apply a supplied group-mean subtraction and grand-mean restoration.
When to use this tool
Use Fixed Effect Absorption Grandmean Term when you already have observation, groupMean, grandMean and need to apply a supplied group-mean subtraction and grand-mean restoration.
How to use the tool and how it works
- Enter observation, groupMean, grandMean. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read centeredObservation. Use the output convention below.
Return observation-groupMean+grandMean.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| observation | Observation | Required. Finite number. |
| groupMean | Group Mean | Required. Finite number. |
| grandMean | Grand Mean | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| centeredObservation | Centered Observation | Required. Finite number. |
{
"input": {
"observation": 12,
"groupMean": 10,
"grandMean": 5
},
"output": {
"centeredObservation": 7
}
}Limitations and assumptions
- Means are supplied rather than estimated. This one transformation does not absorb multiple fixed effects, fit a model or establish a valid estimator.
- 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
Fit and evaluate the full specified model with appropriate data, grouping and uncertainty treatment for inference. Aggregate the required score/moment terms and use the complete covariance calculation; a local residual, cutoff flag or supplied coefficient transformation does not validate the estimator.
References
Similar or alternative tools
- Panel Within Group Deviation
Subtract literal group means from supplied panel observations.
- Regression Coefficient Unit Rescale
Rescale a supplied regression coefficient between predictor and outcome units.