Dear All,
I am relatively new to R and certainly new to the e-mailing list. I need
your help. I am working on a data frame, which looks like this:
Prod_name | Date 1 | Date 2 | Date 3 |
------------------|-------------|------------|--------------|
Product 1 | 3 | 4 | 0 |
------------------|-------------|------------|--------------|
Product 2 | 5 | 3 | 3 |
------------------|-------------|------------|--------------|
Product 3 | 2 | 8 | 5 |
I am trying to add a new row with the following results:
Prod_name | Date 1 | Date 2 | Date 3 |
------------------|-------------|------------|--------------|
Day_num | 1 | 2 | 3 |
------------------|-------------|------------|--------------|
Product 1 | 3 | 4 | 0 |
------------------|-------------|------------|--------------|
Product 2 | 5 | 3 | 3 |
------------------|-------------|------------|--------------|
Product 3 | 2 | 8 | 5 |
Bellow you can find the things I tried and the results.
1)
r <- 1
newrow <- rep(1:7, 5, len=ncol(data_may)-1)
insertRow <- function(data_may, newrow, r) {
data_may[seq(r+1,nrow(data_may)+1),] <- data_may[seq(r,nrow(data_may)),]
data_may[r,] <- newrow
data_may
}
It doesn't put the new row.
2)
data_may<-rbind(data_may,c("Day_num",newrow))
Error: cannot convert object to a data frame
3)
data_may[2093,]<-c("Day_num",rep(1:7, 5, len=ncol(data_may)-1))
It makes all the columns characters and when i try to change it it says
that you can change a list
How can I add the row while keeping the columns (apart from the first one)
as numeric or double or integer?
Thank you, in advance, for your help!
Kind regards
Filippos
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