此文章写的已经很详细了
值得注意的是我在在命令行输入pip install radian时,并不是一次就成功的。事实上前几次都报错了,而且报的错还都不一样,但神奇的是其他条件不变的情况下多试几次,最后就成功了。所以遇到和我一样问题的朋友可以尝试重复运行几次
当我兴致勃勃尝试运行下列代码时
library(lpSolve) M = 100000000 a1 = c(820,810,840,960,0) a2 = c(820,810,840,960,0) a3 = c(800,870,M,920,0) a4 = c(800,870,M,920,0) a5 = c(740,900,810,840,M) a = rbind(a1,a2,a3,a4,a5) solution = lp.assign(a) solution$solution
在r.exe中安装完lpSolve包后,程序运行但不显示运行结果
只显示
r$> source("test.R", encoding = "UTF-8")
解决办法一
r$> source("test.R", encoding = "UTF-8",echo=TRUE)
解决办法二
运行后,在命令行复制完整代码
最后程序顺利运行r$> solution$solution
[,1] [,2] [,3] [,4] [,5]
[1,] 0 0 1 0 0
[2,] 0 1 0 0 0
[3,] 1 0 0 0 0
[4,] 0 0 0 0 1
[5,] 0 0 0 1 0



