rstudio - Unable to install package shiny on R 3.0.2 -
i using win64 , unable install 'shiny' package on r. when trying install, following message populated. can please put me in right track or missing stupid here?
> install.packages("shiny") installing package ‘c:/users/ayan/documents/r/win-library/3.0’ (as ‘lib’ unspecified) --- please select cran mirror use in session --- warning: unable access index repository http://ftp.iitm.ac.in/cran/bin/windows/contrib/3.0 warning: unable access index repository http://www.stats.ox.ac.uk/pub/rwin/bin/windows/contrib/3.0 warning messages: 1: in open.connection(con, "r") : unable resolve 'cran.r-project.org' 2: package ‘shiny’ not available (for r version 3.0.2)
i tried using india, cloud(0) cran mirror
contents of ui.r file:
library(shiny) # define ui application plots random distributions shinyui(pagewithsidebar( # application title headerpanel("hello shiny!"), # sidebar slider input number of observations sidebarpanel( sliderinput("obs", "number of observations:", min = 1, max = 1000, value = 500) ), # show plot of generated distribution mainpanel( plotoutput("distplot") ) ))
contents of server.r file:
library(shiny) # define server logic required generate , plot random distribution shinyserver(function(input, output) { # expression generates plot of distribution. expression # wrapped in call renderplot indicate that: # # 1) "reactive" , therefore should automatically # re-executed when inputs change # 2) output type plot # output$distplot <- renderplot({ # generate rnorm distribution , plot dist <- rnorm(input$obs) hist(dist) }) })
also facing problem installing package 'holdout' classification problem. shows:
> install.packages("holdout") installing package ‘c:/users/ayan/documents/r/win-library/3.0’ (as ‘lib’ unspecified) warning in install.packages : package ‘holdout’ not available (for r version 3.0.2)
are these 2 problems related?
try:
options(repos = c(cran = "http://cran.rstudio.com")) install.packages('shiny')
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