Data Structure - Named Vector

Q

What is a named vector?

✍: FYIcenter.com

A

A named vector is a special vector where each member has a unique name. A name vector is an associated array in many other programming language.

1. Create a named vector object with the name() function -

> v = c("Apple", "Banana", "Orange")

> v
[1] "Apple"  "Banana" "Orange"

> names(f) = c("First", "Second", "Third")
> v
   First   Second    Third
 "Apple" "Banana" "Orange"

2. Get members by index and by name -

> v["Second"]
 Second
"Banana"

> f[2]
 Second
"Banana"

⇒ Data Structure - List

⇐ Vector Is Not a Data Type

⇑ R Language Basics

⇑⇑ R Software Environment - Frequently Asked Questions

2023-06-11, ∼1471🔥, 0💬

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What is a Factor? A factor is a data structure that stores a vector and its distinct values as categories. 1. Create a factor object with the factor() function - > f = factor( c("Bike", "Car", "Truck", "Car", "Bike", "Truck") ) > f [1] Bike Car Truck Car Bike Truck Levels: Bike Car Tru... 2023-05-31, ∼1387🔥, 0💬

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