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- Static Method:
`out`=**longley***()* -
Longley’s Economic Regression Data

#### Description

A macroeconomic data set which provides a well-known example for a highly collinear regression.

#### Format

`Year`

The year.

`GNP_deflator`

GNP implicit price deflator (1954=100).

`GNP`

Gross National Product.

`Unemployed`

Number of unemployed.

`Armed_Forces`

Number of people in the armed forces.

`Population`

“Noninstitutionalized” population ≥ 14 years of age.

`Employed`

Number of people employed.

#### Source

J. W. Longley (1967). An appraisal of least-squares programs from the point of view of the user. Journal of the American Statistical Association, 62, 819–841.

#### References

Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988). The New S Language. Monterey: Wadsworth & Brooks/Cole.

#### Examples

t = octave.dataset.longley; # TODO: Linear model # TODO: opar plot