title: Detect conflicts between packages in R
body: <p>I've recently found out that errors can be caused due to conflicts between packages, that is, two (or more) packages might have functions named similarly. I know that the code <code>search ()</code> produces the list of packages ordered in the way R reads them. There is also the <code>args</code> code which gives the function read by R.  <br/> What I would like to know firstly is how to detect if an error is being produced because of conflicts between packages and secondly how to find out which packages are conflicting? Finally, after the conflicts have been detected, how can we force R to use specifically the function from  one of the packages?</p>