x2<-runif(25,min=75,max=95)
x3<-numeric()
for(i in 1:25) x3[i]<-72+i
x<-matrix(c(x1,x2,x3),ncol=3)
loc<-which(x>=85&x<=95,arr.ind=T)
sloc<-matrix(c(loc,x[loc]),ncol=3)
sor1<-matrix(c(order(-x1),sort(x1,de<-T)),ncol=2)
sor2<-matrix(c(order(-x2),sort(x2,de<-T)),ncol=2)
sor3<-matrix(c(order(-x3),sort(x3,de<-T)),ncol=2)
R是不断更新的一个工具,里面的扩展包的使用是和R的版本还有byte相关的,所以这里根据你的报错信息来看, 你要检查一下你的R版本,保证在3.2以上能够使用这个扩展包.
R里的复杂扩展包一般都是有依赖包存在的,一般使用install.packages命令会让R也同时自动下载依赖包,这里你没有提供依赖包下载信息,默认应该都被自动下载好了.
另外一种情况就是R并不下载依赖包,但是在使用library()命令时也会加载一些其他包来使目标包可以被加载成功,这时会有warning信息.
你是不是用R Gui安装的，提示已经说了缺少quadprog依赖包，用R Gui安装的话需要先把依赖包一个个安装上，比较麻烦，
可以在Rstudio上安装，
install.packages('tseries')
also installing the dependencies ‘quadprog’, ‘zoo’
trying URL 'https://cran.rstudio.com/bin/windows/contrib/3.3/quadprog_1.5-5.zip'
Content type 'application/zip' length 52439 bytes (51 KB)
downloaded 51 KB
trying URL 'https://cran.rstudio.com/bin/windows/contrib/3.3/zoo_1.7-13.zip'
Content type 'application/zip' length 899932 bytes (878 KB)
downloaded 878 KB
trying URL 'https://cran.rstudio.com/bin/windows/contrib/3.3/tseries_0.10-35.zip'
Content type 'application/zip' length 327381 bytes (319 KB)
downloaded 319 KB
package ‘quadprog’ successfully unpacked and MD5 sums checked
package ‘zoo’ successfully unpacked and MD5 sums checked
package ‘tseries’ successfully unpacked and MD5 sums checked
The downloaded binary packages are in
C:\Users\yuexf\AppData\Local\Temp\RtmpqqGpKz\downloaded_packages
>library(tseries)
‘tseries’ version: 0.10-35
‘tseries’ is a package for time series analysis and computational finance.
See ‘library(help="tseries")’ for details.
它会自动把依赖包给你安装上
