Question

Which of the following data structures in R can store different types of data?

Answer 1

Everything present in R is an object.

R contains six atomic vector kinds which are as follows:

1. Characters
2. Numerics ( whether decimal or real)
3. Integers
4. Logical expressions
5. Complex numbers

It contains single type of data.

1. characters: "a", "swc"
2. numerics: 4, 16.5
3. integers: 2L (the L ascertains R to save this as an integer)
4. Logical expressions: FALSE, TRUE
5. Complex numbers: 3+5i (complex numbers with real and imaginary parts)

R provides many functions to examine features of vectors and other objects, for example

• class( ) - what kind of objects are this(high-level)?
• type of( ) - what is the data type of object (low-level)?
• length( ) - What about two dimensional objects and its length?
• attributes( ) - does it contain any meta data?