How to add rows to empty data frames with header in R? [duplicate]

Answer 1

You can assign to the dataframe by index:

compData <- data.frame(A= numeric(0), B= numeric(0))
compData
compData[1, ] <- c(5, 443)
compData

Which gives:

> compData <- data.frame(A= numeric(0), B= numeric(0))
> compData
[1] A B
<0 rows> (or 0-length row.names)
> compData[1, ] <- c(5, 443)
> compData
  A   B
1 5 443