What Is Atomic Data Type in R?


Heather Bennett

In R programming language, an atomic data type is a basic data type that cannot be further divided into smaller parts. R provides five atomic data types: numeric, character, logical, integer, and complex.


The numeric data type in R represents real numbers. It can include both integers and decimal values. Numeric values are commonly used for mathematical calculations and statistical analysis.


The character data type in R represents text strings. Textual information such as names, addresses, and descriptions are often stored as character values. Character strings in R are enclosed within single or double quotation marks.


The logical data type in R represents boolean values that can have two possible states: TRUE or FALSE. Logical values are commonly used to represent conditions or test results.


The integer data type in R represents whole numbers without any decimal places. Integers are often used when dealing with counting or indexing operations. Unlike numeric values, integers do not store decimal places and have a smaller storage size.


The complex data type in R represents numbers with both real and imaginary parts. Complex numbers are primarily used for advanced mathematical calculations such as signal processing and scientific simulations.


  • R automatically assigns the appropriate atomic data type based on the input value.
  • You can use the typeof() function to determine the atomic data type of a variable.
  • R also supports vectorization, which allows you to perform operations on entire vectors of atomic values efficiently.
  • You can convert between different atomic data types using type conversion functions like as.numeric(), as.character(), and as.logical().

Understanding atomic data types is essential for working with data in R. By correctly identifying and manipulating data types, you can perform various operations and analysis on your datasets.

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