How can R read and import data files in different formats?

In R language, various functions can be used to read and import different types of data files. Here are some commonly used methods:

1. Import data from a CSV file into R.

data <- read.csv("file.csv")

1. xl read
2. import the function read_excel()

library(readxl)
data <- read_excel("file.xlsx")

1. Read lines.

data <- readLines("file.txt")

1. originating from another country
2. Open the SPSS file for reading.

library(foreign)
data <- read.spss("file.sav", to.data.frame=TRUE)

1. Relational Database Connectivity using R.
2. retrieve data using SQL is obtained through the use of the function sqlFetch()

library(RODBC)
conn <- odbcConnect("DSN")
data <- sqlFetch(conn, "table_name")

The above are some common methods, you can select the appropriate function to read and import data based on different data file formats.