Published

2010-01-01

UN TEST DE SIMILITUD ENTRE DOS SECUENCIAS DICOTÓMICAS ORDENADAS

A SIMILARITY TEST BETWEEN TWO DICHOTOMIC ORDERED SEQUENCES

Keywords:

similitud, datos dicotómicos, potencia de una prueba (es)
Similarity, Dichotomous data, Power of a test (en)

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Authors

  • Ramón Giraldo Henao Universidad Nacional de Colombia
  • Jimmy Corzo Salamanca Universidad Nacional de Colombia
Se propone una prueba para la hipótesis de similitud de dos secuencias dicotómicas ordenadas. Un estudio de potencia basado en simulación indica que la prueba propuesta mantiene su tamaño bajo la hipótesis nula y que su potencia crece adecuadamente con el tamaño de muestra. Además la prueba tiene la misma potencia que la prueba del signo y supera en potencia a las pruebas basadas en las estadísticas de antirrachas y de Wilcoxon.
We propose a test for the hypothesis of similarity between dichotomic ordered sequences. A simulation study was carried out to estimate the power of the proposed test. It is shown that the test maintain its size under the null hypothesis and that its power increase with the considered alternative hypothesis. In addition the proposed test is as powerful as the sign test and overtakes the antiruns test and the Wilcoxon test.

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References

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Giraldo, R., Méndez, N. & Troncoso, W. (2000), `Geoestadística: una herramienta para La modelación en estuarios', Revista Académica Colombiana Ciencia 24(90), 57-92.

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R Development Core Team (2005), R: A Language and Environment for Statistical Computing, R Foundation for Statistical Computing, Vienna, Austria. ISBN 3-900051-07-0, http://www.R-project.org.

Randles, R. & Wolfe, D. (1979), Introduction to tlw Theory of Non-parametric Statistics, John Wiley & Sons, New York.

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