试图安装Homebrew - 安装返回无法安装你已经有自制软件，卸载返回'无法找到自制软件

Question

您将在下面看到我尝试安装自制软件。它返回一个我已经拥有它的错误。然后我尝试卸载它，但它说无法找到它。

  ## Getting and preparing data
  >>df=data.frame(Record = c(8,9), WDPAID = c(1, 1), Year= c(2005, 2006), Method=c("a","a"))
  >>df$ind= 1:nrow(df)
  >>df2= df
  >> df
          Record WDPAID Year Method ind
    1      8      1 2005      a   1
    2      9      1 2006      a   2

## doing the merge 
 >> df_noisy = merge(df, df2, by.x = c("Method", "WDPAID") , by.y = c("Method","WDPAID"), suffixes=c(1,2))
 >> df_needed = df_noisy[df_noisy$ind1 != df_noisy$ind2, ]