Parece que o pacote vai para o micro mas de alguma
        forma na hora de carregar nao funciona
      
        > install.packages("rJava")
        --- Please select a CRAN mirror for use in this session ---
        
        Content type 'application/zip' length 746108 bytes (728 Kb)
        URL aberta
        downloaded 728 Kb
        
        
        package ‘rJava’ successfully unpacked and MD5 sums checked
        
        
        The downloaded binary packages are in
               
          C:\Users\user\AppData\Local\Temp\RtmpoBqDjS\downloaded_packages
        > require(rJava)
        Carregando pacotes exigidos: rJava
        Error : .onLoad falhou em loadNamespace() para 'rJava',
          detalhes:
          chamada: fun(libname, pkgname)
          erro: JAVA_HOME cannot be determined from the Registry
        > require("rJava")
        Carregando pacotes exigidos: rJava
        Error : .onLoad falhou em loadNamespace() para 'rJava',
          detalhes:
          chamada: fun(libname, pkgname)
          erro: JAVA_HOME cannot be determined from the Registry