The darwin data frame has 15 rows and 1 columns.
darwin数据框有15行1列。
Charles Darwin conducted an experiment to examine the superiority of cross-fertilized plants over self-fertilized plants. 15 pairs of plants were used. Each pair consisted of one cross-fertilized plant and one self-fertilized plant which germinated at the same time and grew in the same pot. The plants were measured at a fixed time after planting and the difference in heights between the cross- and self-fertilized plants are recorded in eighths of an inch.
查尔斯·达尔文进行了一项实验来审视自我受精植物交叉受精植物的优势。 15对植物使用。每对包括一个跨受精厂和一个自我受精植物发芽在同一时间在同一锅内增长。在固定的时间后,种植的植物进行测量和高度差之间的交叉和自我受精的植物在八分英寸的记录。
用法----------Usage----------
darwin
格式----------Format----------
This data frame contains the following column:
这个数据框包含以下栏:
The difference in heights for the pairs of plants (in units of 0.125 inches).
在对植物的高度差(0.125英寸为单位)。
源----------Source----------
The data were obtained from
数据取自
Fisher, R.A. (1935) Design of Experiments. Oliver and Boyd.
费舍尔号共和国法(1935)的实验设计。奥利弗和博伊德。
参考文献----------References----------
The Effects of Cross- and Self-fertilisation in the Vegetable Kingdom. John Murray.
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)。