Numbers of Japanese beetle larvae per square found in the top foot of soil of an 18 x 8 foot area of a field planted with maize. The columns of the matrix correspond to the direction of cultivation of the field; the maize rows were sown 4 feet apart.
日本甲虫的幼虫每平方米的数字中发现的18×8英尺的区域种植玉米的土壤顶脚。矩阵的列相对应的方向种植的字段;,播种玉米行相隔4英尺。
用法----------Usage----------
data(beetle)
格式----------Format----------
The format is: num [1:18, 1:8] 0 2 3 1 5 3 5 3 2 3 ...
其格式为:民[1:18,1:8] 0 2 3 1 5 3 5 3 2 3 ...
源----------Source----------
Unpublished lecture notes, Imperial College, London
未发表的讲义,伦敦帝国学院,