Appropriate transformation for the population counts of citrus green scale, Coccus viridis (Green) (Coccidae, Homoptera)
Six transformations viz., , log[log (x + 2)] and log[log (x + k )] were tested for their efficiency in stabilizing variance of Coccus viridis (Green) population counts which followed negative binomial distribution. Only log[log(x + 2)] transformation was found effective in stabilizing variance. This...
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| Veröffentlicht in: | Insect science and its application 1987-01, Vol.8 (2), p.255-257 |
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| container_title | Insect science and its application |
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| creator | Tandon, P. L. Veeresh, G. K. |
| description | Six transformations viz., , log[log (x + 2)] and log[log (x + k )] were tested for their efficiency in stabilizing variance of Coccus viridis (Green) population counts which followed negative binomial distribution. Only log[log(x + 2)] transformation was found effective in stabilizing variance. This is a new transformation proposed by the authors. Six transformations, á savoir, , log[log(x + 2)], et log[log(x + k)] ont été essayées pour leur efficacité concernant la stabilisation de variance des comptes de populations de Coccus viridis (Green), lequeles ont suivis une distributions binomiale negative. Seule la transformation log[log(x + 2)] s'est trouvée comme efficace pour stabiliser variance. C'est une nouvelle transformation proposée par les auteurs présents. |
| doi_str_mv | 10.1017/S1742758400007311 |
| format | Article |
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Seule la transformation log[log(x + 2)] s'est trouvée comme efficace pour stabiliser variance. 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| ispartof | Insect science and its application, 1987-01, Vol.8 (2), p.255-257 |
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| source | SpringerLink Journals - AutoHoldings |
| subjects | Citrus reticulata Coccidae Coccus viridis counting frequency distribution mathematical models population dynamics statistical analysis |
| title | Appropriate transformation for the population counts of citrus green scale, Coccus viridis (Green) (Coccidae, Homoptera) |
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