Convert an Object to Data Frame in R Programming – as.data.frame() Function

as.data.frame() function in R Language is used to convert an object to data frame. These objects can be Vectors, Lists, Matrices, and Factors.

Syntax: as.data.frame(object)

Parameters:
object: Vector, Matrix, factor, or data frame

Example 1:

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# R program to convert object to data frame
  
# Creating Vectors
x1 <- c(1, 2, 3, 4)
x2 <- c("a", "B", "C", "D")
x3 <- c("hello", "Geeks", "for", "geeks")
  
# Creating list of vectors
x <- list(col1 = x1, col2 = x2, col2 = x3)
x
  
# Converting list to data frame
as.data.frame(x)

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Output:

$col1
[1] 1 2 3 4

$col2
[1] "a" "B" "C" "D"

$col2
[1] "hello" "Geeks" "for"   "geeks"

  col1 col2 col2.1
1    1    a  hello
2    2    B  Geeks
3    3    C    for
4    4    D  geeks

Example 2:

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# R program to convert object to list
  
# Converting pre-defined dataset to list
x <- as.list(BOD)
x
  
# Converting list to data frame
as.data.frame(x)

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Output:


$Time
[1] 1 2 3 4 5 7

$demand
[1]  8.3 10.3 19.0 16.0 15.6 19.8

attr(, "reference")
[1] "A1.4, p. 270"
  Time demand
1    1    8.3
2    2   10.3
3    3   19.0
4    4   16.0
5    5   15.6
6    7   19.8
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