List and vector in R

Category: R January 4, 2014

Vector, Array, List and Data Frame are 4 basic data types defined in R. Knowing the differences between them will help you use R more efficiently.

1. Vector

All elements must be of the same type.

For example, the following code create two vectors.

name y y $name [1] "Mike" $gender [1] "M" $company [1] "ProgramCreek"

4. Date Frame

A data frame is used for storing data tables. It is a list of vectors of equal length.

For example, you can create a date frame by using the following code:

> name age student df = data.frame[name, age, student] > df name age student 1 Mike 20 TRUE 2 Lucy 25 FALSE 3 John 30 TRUE

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