.. r basics



Learning R
==========================

Learning R can be a career long endeavor.  The best advise is to use it every chance you get.  And do not be afraid to ask questions-- R is a very common language and many people can help you.

   * Exit R -- Type ``q()``
   * Get help -- ``?mean`` or ``help(mean)``
  

.. rubric:: predefined-variables

.. code-block:: r 

  print(pi)


.. code-block:: none 

  [1] "..."
  [1] 3.141593
   


Declaring variables.


.. rubric:: other-varialbes

.. code-block:: r 

  print("I am a String")
  a <- 1:10
  print(a)
  print(a>5)


.. code-block:: none 

  [1] "..."
  [1] "I am a String"
  [1]  1  2  3  4  5  6  7  8  9 10
  [1] FALSE FALSE FALSE FALSE FALSE  TRUE  TRUE  TRUE  TRUE  TRUE
   



1. What does the command ``seq`` do?
2. Wha about :math:`1:10 + 5`?


Resources
^^^^^^^^^^^^^^^^

   * :download:`RQuickReference (pdf)<../RQuickReference.pdf>` - very handy summary of R functions by `Elizabeth Slate <http://www.stat.fsu.edu/people/faculty.php?id=40>`_
   * :download:`RBasics Part I (pdf)<../RBasics-I-v2.pdf>` - short course on R by `R. Montgomerie <http://www.queensu.ca/biology/undergrad/courses/undergradthesis/537projects/MontgomerieR.html>`_
   * :download:`RBasics Part II (pdf)<../RBasics-II-v2.pdf>` - short course on R part II
   * An `R primer for introductory statistics <http://www.stat.wisc.edu/~larget/r.html>`_