Here we are explaining how to write an R program to convert a given data frame to a list by rows. Here we are using a built-in function data.frame(). A data frame is used for storing data tables which has a list of vectors with equal length. The data frames are created by function data.frame(), which has tightly coupled collections of variables. The syntax of this function is,
Below are the steps used in the R program to convert a given data frame to a list by rows. In this R program, we directly give the data frame to a built-in function. Here we are using variables E, N, S, A, Q for holding different types of vectors. Call the function data.frame() for creating data frame. Finally, Convert the data frame into list L by calling split(E, seq(nrow(E))). Here split() helps to divide the vector or data frame containing values into groups. And seq() method helps to generate regular sequences.
E = data.frame(
N = c('Jhon', 'Hialy', 'Albert', 'James', 'Delma'),
S = c(10, 9.5, 12.2, 11, 8),
A = c(2, 1, 2, 4, 1),
Q = c('yes', 'no', 'yes', 'no', 'no')
)
print("Original dataframe:")
## [1] "Original dataframe:"
print(E)
## N S A Q
## 1 Jhon 10.0 2 yes
## 2 Hialy 9.5 1 no
## 3 Albert 12.2 2 yes
## 4 James 11.0 4 no
## 5 Delma 8.0 1 no
L = split(E, seq(nrow(E)))
print("dataframe rows to a list:")
## [1] "dataframe rows to a list:"
print(L)
## $`1`
## N S A Q
## 1 Jhon 10 2 yes
##
## $`2`
## N S A Q
## 2 Hialy 9.5 1 no
##
## $`3`
## N S A Q
## 3 Albert 12.2 2 yes
##
## $`4`
## N S A Q
## 4 James 11 4 no
##
## $`5`
## N S A Q
## 5 Delma 8 1 no