Create empty data frame with 200 rows and no columns

Question

Here is how I can do that:

df <- data.frame(a=1:200)
df$a <- NULL
df

Result:

data frame with 0 columns and 200 rows

Can the same be achieved with only one command?

Answer 1

This can work (if the call to 2 functions is not considered 2 commands):

data.frame(matrix(, nrow=200, ncol=0))
#data frame with 0 columns and 200 rows

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Edit: Another option is data.frame()[1:200, ]:

data.frame()[1:200, ]
# data frame with 0 columns and 200 rows

Answer 2

What about this?

data.frame(row.names = 1:200)