支架 发表于 2025-4-1 03:02:21
https://doi.org/10.1007/978-3-662-59608-1its in the initial sample. It means, if one finds what he/she is looking for at a particular location then he/she would sample in the vicinity of that location with the hope of obtaining more information.Embolic-Stroke 发表于 2025-4-1 07:31:43
http://reply.papertrans.cn/15/1462/146195/146195_62.pnghidebound 发表于 2025-4-1 10:10:08
Werner Buselmaier,Joana Haussigmethods provide poor estimates of the population mean/total. In such situations, adaptive sampling is useful. In traditional stratified sampling, similar units are grouped a priori into strata, based on prior information about the population. But within a stratum, the population is rare and clumped.聪明 发表于 2025-4-1 16:01:14
Werner Buselmaier,Joana Haussigthe mean/total of the variable of interest. This method is a two-phase variant of the NACS obtained by combining the idea of double sampling and NACS. We have named this method as negative adaptive cluster double sampling (NACDS).Legion 发表于 2025-4-1 18:32:42
,Grundlagen der Mikrobiologie und Ökologie, variable which is inexpensive and easy to obtain. On the basis of the domain knowledge about the situation, it is known that the auxiliary variable and the variable of interest have a high negative correlation.Digitalis 发表于 2025-4-2 01:45:11
https://doi.org/10.1007/978-3-540-29375-0nit, costs involved, destruction of the sampling unit (especially when repeated measurements are required in the sample), etc. McIntyre (.) proposed a sampling method to provide the precise estimates for the grass and pasture yield in Australia.悦耳 发表于 2025-4-2 05:35:11
http://reply.papertrans.cn/15/1462/146195/146195_67.pngsemiskilled 发表于 2025-4-2 09:09:38
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