Question

I have 2 files that contain benchmark results for the same test on 2 different hosts. The results are raw data in space separated format.

I need to be able to compare them to each other as the hosts are not the same. Primarily for the purposes of graphing. Is there a way to add a “field” or column that is unique to each file (but the same to all rows in that file), which I can then use to differentiate the results in a graph? How else could I go about doing this.

Answer 1

You can just explicitly add in the extra column.

For example:

# first file
df1 <- read.table(...)
 # identify as first file
df1$file_name <- 'file1'

# second file
df2 <- read.table(...)
df2$file_name <- 'file2'

# combine:
df <- rbind(df1,df2)

Of course you don’t need to do it in so many steps, but this should give you a starting direction.