How to create an empty data frame with fixed number of rows and without columns in R?

To create an empty data frame with fixed number of rows but no columns, we can use data.frame function along with the matrix function. That means we need to create a matrix without any column using matrix and save it in a data frame using data.frame function as shown in the below examples.

Example1

> df1<-data.frame(matrix(,nrow=10,ncol=0))
> df1

Output

data frame with 0 columns and 10 rows

Example2

> df2<-data.frame(matrix(,nrow=100,ncol=0))
> df2

Output

data frame with 0 columns and 100 rows

Example3

> df3<-data.frame(matrix(,nrow=39,ncol=0))
> df3

Output

data frame with 0 columns and 39 rows

Example4

> df4<-data.frame(matrix(,nrow=20,ncol=0))
> df4

Output

data frame with 0 columns and 20 rows

Example5

> df5<-data.frame(matrix(,nrow=200,ncol=0))
> df5

Output

data frame with 0 columns and 200 rows

Example6

> df6<-data.frame(matrix(,nrow=150,ncol=0))
> df6

Output

data frame with 0 columns and 150 rows

Example7

> df7<-data.frame(matrix(,nrow=1000,ncol=0))
> df7

Output

data frame with 0 columns and 1000 rows

Example8

> df8<-data.frame(matrix(,nrow=500,ncol=0))
> df8

Output

data frame with 0 columns and 500 rows

Example9

> df9<-data.frame(matrix(,nrow=50000,ncol=0))
> df9

Output

data frame with 0 columns and 50000 rows

Example10

> df10<-data.frame(matrix(,nrow=10000000,ncol=0))
> df10

Output

data frame with 0 columns and 10000000 rows