Description
transformed = value-groupMean, adding grandMean only when addGrandMean is true.
Panel transformations and regression weights depend on entity, period and weighting conventions. Demeaning or differencing a supplied value is separate from fitting fixed effects, validating panel structure or choosing a statistically appropriate weight.
transformed = value-groupMean, adding grandMean only when addGrandMean is true.
When to use this tool
Use Fixed Effect Within One Cell Term when checking one panel transformation or declared observation weight.
How to use the tool and how it works
- Enter value, groupMean, grandMean, addGrandMean. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read transformed. Use the output convention below.
transformed = value-groupMean, adding grandMean only when addGrandMean is true.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| value | Value | Required. Finite number. |
| groupMean | Group Mean | Required. Finite number. |
| grandMean | Grand Mean | Required. Finite number. |
| addGrandMean | Add Grand Mean | Required. Boolean. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| transformed | Transformed | Required. Finite number. |
{
"input": {
"value": 12,
"groupMean": 8,
"grandMean": 5,
"addGrandMean": false
},
"output": {
"transformed": 4
}
}Limitations and assumptions
- Means are supplied and not recomputed. This one-cell within transformation does not fit fixed effects, handle multiple effects or verify the panel grouping.
- 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
Use a suitable complete estimator and validated data structure for panel inference, weighting and missing-data treatment.
References
Similar or alternative tools
- Within Transform Group Mean
Calculate each exact string group's unweighted mean, return that mean at every corresponding position, and centered = value-groupMean.
- First Difference Two Period Error Term
outcomeDifference = secondOutcome-firstOutcome; regressorDifference = secondRegressor-firstRegressor; residualDifference = outcomeDifference-slope*regressorDifference.