Published

2001-07-01

ESTIMACIÓN DE DATOS FALTANTES EN BLOQUES INCOMPLETOS BALANCEADOS CONECTADOS

Keywords:

Análisis de Covarianza, Bloques Incompletos, Datos Faltantes, Análisis Intrabloque, Diseños conectados (es)
Covariance Analysis, Incomplete Blocks, Missing Data, Within block Analysis, Connected Designs (en)

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Authors

  • Henry Mendoza R. Universidad Nacional de Colombia
  • Luis Alberto López P. Universidad Nacional de Colombia
La presencia de datos faltantes en un experimento hace que se pierda la estructura original y en consecuencia la ortogonalidad del diseño original planteado. En este trabajo, se estiman los datos faltantes en un diseño de bloques incompletos balanceados tipo I conectados (BIBC), aplicando el método de covarianza de Bartlett; se hace la corrección del análisis de varianza y finalmente se aplican los resultados obtenidos para los datos de un experimento realizado bajo un diseño de bloques incompletos en repeticiones. Los resultados obtenidos, muestran que el análisis de varianza corregido depende de los datos observados y de la estimación de los datos faltantes.
Missing data in experiments cause loss in the original structure and therefore in the orthogonality of the experimental design. This paper estimates missing data in an incomplete connected balanced block design type I (ICBB), applying the Bartlett's covariance method; a correction of the analysis of variance is done, and finally the results are applied in experimental data realized in incomplete blocks design with repetitions. The obtained results show that the corrected analysis of variance depends on the observed data and estimation of the missing data.

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Copyright (c) 2001 Revista Colombiana de Estadística

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