Introduction to R Programming

'R' is a programming language for data analysis and statistics. It is free, and very widely used by professional statisticians. It is also very popular in certain application areas, including bioinformatics. R is a dynamically typed interpreted language and is typically used interactively. It has many built-in functions and libraries, and is extensible, allowing users to define their own functions and procedures using R, C or Fortran. It also has a simple object system. R is case sensitive on its built-in libraries and functions, also to defined variables. Build-in functions may include ?summary, min, c, range? and many more. It can also perform functions of OOP like functions and procedures. Some functions require more than one parameter, others require only one parameter. Graphical exploration ? used for graphical statistics to plot data on a graph. Able to use different type of graphs, line graph, scatter plot, histogram, etc. Parameters can be passed in any order, unless has different datatypes.