Basic Data Structures in R

Vectors

# Creating a numeric vector
numeric_vector <- c(1, 2, 3, 4, 5)
print(numeric_vector)

## [1] 1 2 3 4 5

# Creating a character vector
character_vector <- c("apple", "orange", "banana")
print(character_vector)

## [1] "apple"  "orange" "banana"

Matrices

# Creating a matrix
matrix_data <- matrix(c(1, 2, 3, 4, 5, 6), nrow = 2, ncol = 3)
print(matrix_data)

##      [,1] [,2] [,3]
## [1,]    1    3    5
## [2,]    2    4    6

Lists

# Creating a list
list_data <- list(numbers = c(1, 2, 3), fruits = c("apple", "orange", "banana"))
print(list_data)

## $numbers
## [1] 1 2 3
## 
## $fruits
## [1] "apple"  "orange" "banana"

Data Frames

# Creating a data frame
data_frame_data <- data.frame(
  name = c("Alice", "Bob", "Charlie"),
  age = c(25, 30, 22),
  gender = c("Female", "Male", "Male")
)
print(data_frame_data)

##      name age gender
## 1   Alice  25 Female
## 2     Bob  30   Male
## 3 Charlie  22   Male

Factors

# Creating a factor
gender_factor <- factor(c("Male", "Female", "Male", "Female"))
print(gender_factor)

## [1] Male   Female Male   Female
## Levels: Female Male