写在前面的话，学习Python时，发现notebook很好用，又发现里面可以运行R代码。本身也正在学习markdown语法，就以此为契机，将cookbook里面的东西翻译一下。希望对后来者有用。
安装agricolae
如果没有安装的话，需要键入下面代码安装agricolae软件包：
install.packages("agricolae")如果已经安装了，直接键入下面代码载入agricolae包：
library(agricolae)
随机区组试验设计
假设20个品种A1~A20,种植4个区组，怎么设计，代码如下
library(agricolae)
cul <- paste("A",1:20,"")
rcbd <- design.rcbd(trt = cul,r = 4)
rcbd$book
plots | block | cul |
101 | 1 | A 10 |
102 | 1 | A 8 |
103 | 1 | A 18 |
104 | 1 | A 1 |
105 | 1 | A 4 |
106 | 1 | A 2 |
107 | 1 | A 17 |
108 | 1 | A 12 |
109 | 1 | A 7 |
110 | 1 | A 13 |
111 | 1 | A 11 |
112 | 1 | A 16 |
113 | 1 | A 19 |
114 | 1 | A 5 |
115 | 1 | A 6 |
116 | 1 | A 15 |
117 | 1 | A 3 |
118 | 1 | A 14 |
119 | 1 | A 20 |
120 | 1 | A 9 |
201 | 2 | A 6 |
202 | 2 | A 4 |
203 | 2 | A 17 |
204 | 2 | A 16 |
205 | 2 | A 8 |
206 | 2 | A 18 |
207 | 2 | A 15 |
208 | 2 | A 20 |
209 | 2 | A 14 |
210 | 2 | A 10 |
… | … | … |
311 | 3 | A 12 |
312 | 3 | A 6 |
313 | 3 | A 11 |
314 | 3 | A 19 |
315 | 3 | A 2 |
316 | 3 | A 1 |
317 | 3 | A 14 |
318 | 3 | A 10 |
319 | 3 | A 5 |
320 | 3 | A 8 |
401 | 4 | A 5 |
402 | 4 | A 7 |
403 | 4 | A 8 |
404 | 4 | A 11 |
405 | 4 | A 17 |
406 | 4 | A 18 |
407 | 4 | A 19 |
408 | 4 | A 4 |
409 | 4 | A 2 |
410 | 4 | A 6 |
411 | 4 | A 12 |
412 | 4 | A 3 |
413 | 4 | A 1 |
414 | 4 | A 16 |
415 | 4 | A 20 |
416 | 4 | A 14 |
417 | 4 | A 15 |
418 | 4 | A 13 |
419 | 4 | A 9 |
420 | 4 | A 10 |
田间种植图如下：
其中，每一行表示一个区组，一个区组有A1~A20个品种
rcbd$sketch
A 10 | A 8 | A 18 | A 1 | A 4 | A 2 | A 17 | A 12 | A 7 | A 13 | A 11 | A 16 | A 19 | A 5 | A 6 | A 15 | A 3 | A 14 | A 20 | A 9 |
A 6 | A 4 | A 17 | A 16 | A 8 | A 18 | A 15 | A 20 | A 14 | A 10 | A 3 | A 1 | A 7 | A 19 | A 9 | A 12 | A 5 | A 13 | A 2 | A 11 |
A 15 | A 9 | A 4 | A 3 | A 7 | A 17 | A 16 | A 13 | A 18 | A 20 | A 12 | A 6 | A 11 | A 19 | A 2 | A 1 | A 14 | A 10 | A 5 | A 8 |
A 5 | A 7 | A 8 | A 11 | A 17 | A 18 | A 19 | A 4 | A 2 | A 6 | A 12 | A 3 | A 1 | A 16 | A 20 | A 14 | A 15 | A 13 | A 9 | A 10 |
