How to Use R Program Data Types?

In programming, different types of information are stored at each memory location. When a variable is created, its memory space is reserved according to its data type.

The values ​​of integer, float, boolean or character type are stored on the variable.

Data Types of R Language are given below.

1. Numeric
2. Integer
3. Complex
4. Logical
5. Character

1. Numeric

All numbers in R language are ‘numeric data types’. The data type of all these numeric values ​​is by default ‘numeric’.

Source Code :

> var1 = 5
> var2 = 10.5
> class(var1)
[1] "numeric"
> class(var2)
[1] "numeric"

Check Numeric Value is Integer or Not in R

In most programming languages, the number that does not have a fractional part is the value of the Integer data type. But every value given by default in R; is numeric data type.

For example, whether the given value is an integer or not, it is checked.

Source Code :

var = 5
> is.integer(var)
[1] FALSE

2. Integer Data Type

In most programming languages, the numeric values ​​that do not have a fractional part are Integers. But in R language if you want to convert numeric value to integer then integer() function is used.

Convert ‘numeric’ to ‘integer’ Data Type in R

Source Code :

var = 5
> as.integer(var)
[1] 5
> class(as.integer(var))
[1] "integer"

3. Complex Data Type

Complex numbers in R language have two parts, one part is ‘real’ and the other part is ‘imaginary’. For Example, 5+2i

Example for Complex Data Type in R

Source Code :

> var = 5+2i
> class(var)
[1] "complex"

4. Logical Data Type

When comparison is done between two operands in R language, then logical values ​​are created. For Example, TRUE and FALSE

Example for Logical Data Type in R

Source Code :

> var1 = 5
> var2 = 5
> var1 == var2
[1] TRUE
> var1 < var2
[1] FALSE

5. Character Data Type

Character Data Type is used to describe String Values. The character(s) is written in single or double quotes.

Example for Character Data Type in R

Source Code :

> var = "Hello World"
> class(var)
[1] "character"

Example for Convert into Character Data Type in R

The as.character() function is used to convert to character data type.

Source Code :

> var = 5
> as.character(var)
[1] "5"

Example for Check character or not in R

Source Code :

> var = "5"
> is.character(var)
[1] TRUE
> var = 5
> is.character(var)
[1] FALSE