892 resultados para rank transform


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devcon transforms the coefficients of 0/1 dummy variables so that they reflect deviations from the "grand mean" rather than deviations from the reference category (the transformed coefficients are equivalent to those obtained by the so called "effects coding") and adds the coefficient for the reference category. The variance-covariance matrix of the estimates is transformed accordingly. The transformed estimated can be used with post estimation procedures. In particular, devcon can be used to solve the identification problem for dummy variable effects in the so-called Blinder-Oaxaca decomposition (see the oaxaca package).

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Information about the first finding of awaruite in oceanic peridotites is given. Petrography of rocks, mineralogy, and minerals associated with awaruite are characterized.

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Includes bibliographical references.

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Includes original t.p.: "...as originally presented by amateurs in Charleston, S. C., January 9th, 11th, 14th and 16, 1899."

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Vol. 5 has title "Original letters, written during the reigns of Henry VI., Edward IV., Edward V., Richard III., and Henry VII." This volume was published after Fenn's death by his nephew, William Frere, and includes an "Advertisement containing notices of the life of Sir John Fenn, by ... Frere."

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"September 9, 1980."