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Creating Variables in R

Variables are containers for storing data values. R does not have a command for declaring a variable. A variable is created the moment you first assign a value to it. To assign a value to a variable, use the  <-  sign. To output (or print) the variable value, just type the variable name: Example name <-  "John" age <-  40 name    # output "John" age     # output 40 Try it Yourself » From the example above,  name  and  age  are variables, while  "John"  and  5  are values. In other programming language, it is common to use  =  as an assignment operator. In R, we can use both  =  and  <-  as assignment operators. However,  <-  is preferred in most cases because the  =  operator can be forbidden in some context in R. Print / Output Variables Compared to many other progamming languages, you do not have to use a function to print/outp...