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I want to create a Data Frame with 1 row and n columns but the column names need to change with my n. So for example if my n = 3, I want a Data Frame with 1 Row and 3 columns and the column names should be A1 A2 A3.

sippideraffe
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  • Have you tried anything? – camille Dec 28 '21 at 16:33
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    Does this answer your question? [How to initialize empty data frame (lot of columns at the same time) in R](https://stackoverflow.com/questions/20501345/how-to-initialize-empty-data-frame-lot-of-columns-at-the-same-time-in-r) Also https://stackoverflow.com/q/50706183/5325862 – camille Dec 28 '21 at 16:39

2 Answers2

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ncol <- 3
df <- setNames(data.frame(matrix(nrow = 1, ncol = ncol)), paste0("A", seq(ncol)))

df

  A1 A2 A3
1 NA NA NA
D.J
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Step by step:

# define n
n <- seq(1:3)

# create dataframe
myData = data.frame(matrix(nrow = 1, ncol = length(n))) 
# column names 
columns <- paste0("A", n)
# bring together
names(myData) <- columns
myData

output:

A1 A2 A3
1 NA NA NA
TarJae
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