Estimating the number of species with small sample size
| Autor: | Jia-Shin Jang, 張家鑫 |
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| Rok vydání: | 2009 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 97 There are many well known methods which are available for estimating thenumber of species in a plant community. However, these methods can reach reasonable estimate only at the case of large sample size, which is not allowable in real applications. Hwang & Shen(2008) poposed a new estimator which provide areduction in bias when the sample size is small. Neverless, the performence of root mean square error in Hwang & Shen estimator isn’t very well. The study would provide an improvement of Hwang & Shen(2008) an this is confirmed by several real data sets. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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