nitrofen(boot)
nitrofen()所属R语言包：boot
Toxicity of Nitrofen in Aquatic Systems
除草醚在水生系统的毒性
译者：生物统计家园网 机器人LoveR
描述----------Description----------
The nitrofen data frame has 50 rows and 5 columns.
nitrofen数据框有50行和第5列。
Nitrofen is a herbicide that was used extensively for the control of broad-leaved and grass weeds in cereals and rice. Although it is relatively non-toxic to adult mammals, nitrofen is a significant tetragen and mutagen. It is also acutely toxic and reproductively toxic to cladoceran zooplankton. Nitrofen is no longer in commercial use in the U.S., having been the first pesticide to be withdrawn due to tetragenic effects.
除草醚是一种被广泛用于阔叶和禾本科杂草控制在谷物和大米的除草剂。虽然它是相对无毒的成年哺乳动物，除草醚是一个重要的tetragen和诱变。这也是剧毒和枝角类浮游动物的生殖毒性。除草醚不再是在美国的商业用途，已被撤回由于tetragenic影响第一农药。
The data here come from an experiment to measure the reproductive toxicity of nitrofen on a species of zooplankton (Ceriodaphnia dubia). 50 animals were randomized into batches of 10 and each batch was put in a solution with a measured concentration of nitrofen. Then the number of live offspring in each of the three broods to each animal was recorded.
这里的数据来衡量浮游动物（Ceriodaphnia鳖）一个物种的的除草生殖毒性实验。 50动物随机分为10个批次，每批在一个解决方案，提出了除草醚的测定浓度。然后活的后代，在每三个窝每个动物的数量被记录下来。
用法----------Usage----------
nitrofen
格式----------Format----------
This data frame contains the following columns:
这个数据框包含下列资料：
The nitrofen concentration in the solution (mug/litre).
解决方案中的除草醚浓度（杯/升）。
The number of live offspring in the first brood.
在第一育雏活的后代。
The number of live offspring in the second brood.
在第二育雏活的后代。
The number of live offspring in the third brood.
在第三育雏活的后代。
The total number of live offspring in the first three broods.
活的后代总数在前三窝。
源----------Source----------
The data were obtained from
数据取自
Bailer, A.J. and Oris, J.T. (1994) Assessing toxicity of pollutants in aquatic systems. In Case Studies in Biometry. N. Lange, L. Ryan, L. Billard, D. Brillinger, L. Conquest and J. Greenhouse (editors), 25–40. John Wiley.
水瓢，A.J.和ORIS，J.T. （1994年）评估水生生态系统中污染物的毒性。在生物统计学的案例研究。 N.朗格，L.瑞恩，L.台球，D. Brillinger，属征服和J.温室（编辑），25-40。约翰·威利。
参考文献----------References----------
Bootstrap Methods and Their Application. Cambridge University Press.
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注：
注1：为了方便大家学习，本文档为生物统计家园网机器人LoveR翻译而成，仅供个人R语言学习参考使用，生物统计家园保留版权。
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发表于 2012-2-16 20:35:46
