title: How to install "tidyquant" package to R 3.4.0?
body: <p>Good afternoon. I face a problem, connected with &quot;tidyquant&quot; package installation.
  When I type:</p>
  <pre><code>install.packages (&quot;tidyquant&quot;)
  </code></pre>
  <p>The installation process begins, but some time later I get several warning messages:</p>
  <pre><code>Warning in install.packages :
    dependency ‘PerformanceAnalytics’ is not available
  also installing the dependencies ‘listenv’, ‘future’, ‘globals’, ‘ellipsis’, ‘furrr’, ‘hms’, ‘warp’, ‘glue’, ‘lifecycle’, ‘rlang’, ‘tibble’, ‘tidyselect’, ‘vctrs’, ‘cpp11’, ‘recipes’, ‘rsample’, ‘padr’, ‘readr’, ‘stringi’, ‘slider’, ‘anytime’, ‘dplyr’, ‘Quandl’, ‘riingo’, ‘alphavantager’, ‘tidyr’, ‘timetk’
  
  Warning in install.packages :
    cannot open URL 'http://www.stats.ox.ac.uk/pub/RWin/bin/windows/contrib/3.4/PACKAGES.rds': HTTP status was '404 Not Found'
  </code></pre>
  <p>When the installation process is finished, I type:</p>
  <pre><code>library(tidyquant)
  </code></pre>
  <p>and receive the following error:</p>
  <pre><code>Error in library(tidyquant) : there is no ‘tidyquant’ package
  </code></pre>
  <p>Thank you for your help.</p>