I want to use weka
to predict future instances. I have a csv
file and a small portion of it is as following:
I used r
to read the file but I am not sure how to substitute the zeros with "No error" and anything besides zero to "Error". I would have left like this but unfortunately weka
is not able to predict instances with numbers as the status.
Edit 2: I tried your solution and even though it changed the numbbers to error/no error, it erased the other columns. Did I do something wrong? I also wrote it to a file so it would be easier to see.
Edit 3:
dput(data)
structure(list(BoxType = structure(c(3L, 3L, 6L, 6L, 3L, 8L,
3L, 3L, 6L, 4L, 4L, 3L, 3L, 4L, 6L, 6L, 3L, 6L, 2L, 4L, 3L, 3L,
8L, 3L, 6L, 8L, 2L, 3L, 8L, 8L, 3L, 8L, 2L, 2L, 8L, 8L, 2L, 3L,
8L, 3L, 4L, 3L, 3L, 3L, 2L, 2L, 6L, 4L, 3L, 4L, 4L, 1L, 1L, 1L,
1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 3L, 1L, 1L, 1L, 1L,
1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L,
1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L,
1L, 1L, 1L, 3L, 4L, 2L, 6L, 6L, 4L, 4L, 4L, 6L, 3L, 4L, 6L, 3L,
3L, 2L, 2L, 6L, 3L, 3L, 3L, 2L, 6L, 8L, 3L, 8L, 3L, 4L, 3L, 8L,
6L, 2L, 6L, 6L, 3L, 3L, 4L, 3L, 4L, 4L, 2L, 4L, 2L, 3L, 2L, 6L,
3L, 3L, 4L, 3L, 3L, 6L, 3L, 6L, 3L, 3L, 4L, 6L, 4L, 4L, 3L, 4L,
4L, 2L, 6L, 2L, 6L, 6L, 3L, 3L, 4L, 3L, 4L, 6L, 3L, 4L, 6L, 6L,
4L, 4L, 3L, 6L, 4L, 4L, 3L, 4L, 6L, 3L, 6L, 2L, 3L, 2L, 2L, 6L,
4L, 4L, 3L, 6L, 4L, 3L, 4L, 4L, 4L, 3L, 3L, 3L, 3L, 2L, 6L, 6L,
6L, 3L, 2L, 3L, 3L, 4L, 4L, 3L, 6L, 3L, 4L, 3L, 3L, 3L, 3L, 8L,
6L, 3L, 6L, 2L, 8L, 2L, 3L, 3L, 6L, 3L, 2L, 2L, 3L, 4L, 6L, 2L,
6L, 3L, 3L, 4L, 6L, 3L, 4L, 4L, 4L, 2L, 4L, 3L, 6L, 3L, 3L, 3L,
4L, 3L, 3L, 2L, 4L, 3L, 3L, 3L, 2L, 3L, 4L, 6L, 3L, 3L, 3L, 2L,
3L, 6L, 3L, 3L, 3L, 3L, 3L, 6L, 8L, 4L, 3L, 3L, 2L, 7L, 8L, 6L,
6L, 4L, 6L, 8L, 3L, 2L, 4L, 4L, 6L, 3L, 2L, 6L, 8L, 4L, 6L, 4L,
4L, 4L, 3L, 3L, 3L, 6L, 4L, 4L, 3L, 3L, 3L, 6L, 6L, 3L, 6L, 6L,
6L, 4L, 4L, 3L, 2L, 4L, 3L, 6L, 3L, 4L, 4L, 4L, 4L, 2L, 2L, 3L,
4L, 4L, 3L, 3L, 3L, 3L, 4L, 3L, 6L, 3L, 6L, 6L, 4L, 4L, 2L, 3L,
4L, 4L, 4L, 6L, 6L, 4L, 4L, 4L, 4L, 2L, 3L, 4L, 4L, 3L, 4L, 4L,
4L, 3L, 6L, 3L, 6L, 3L, 6L, 3L, 6L, 6L, 3L, 3L, 3L, 3L, 3L, 6L,
6L, 3L, 6L, 3L, 1L, 1L, 3L, 3L, 3L, 3L, 2L, 3L, 3L, 3L, 6L, 3L,
3L, 3L, 2L, 4L, 4L, 3L, 6L, 3L, 2L, 7L, 3L, 3L, 3L, 2L, 3L, 2L,
3L, 4L, 2L, 2L, 3L, 4L, 3L, 3L, 4L, 1L, 6L, 3L, 2L, 3L, 3L, 7L,
4L, 4L, 3L, 2L, 4L, 2L, 4L, 3L, 3L, 3L, 3L, 6L, 2L, 4L, 2L, 4L,
4L, 4L, 3L, 3L, 3L, 6L, 6L, 3L, 7L, 6L, 3L, 3L, 3L, 4L, 4L, 3L,
6L, 4L, 3L, 7L, 4L, 6L, 6L, 2L, 2L, 4L, 3L, 4L, 4L, 2L, 4L, 4L,
7L, 3L, 4L, 6L, 4L, 6L, 3L, 2L, 3L, 3L, 4L, 4L, 2L, 4L, 3L, 4L,
3L, 3L, 4L, 6L, 2L, 2L, 6L, 6L, 6L, 2L, 3L, 4L, 4L, 3L, 8L, 6L,
4L, 4L, 3L, 3L, 5L, 6L, 2L, 3L, 4L, 8L, 6L, 8L, 4L, 4L, 7L, 4L,
6L, 8L, 4L, 2L, 6L, 6L, 4L, 4L, 1L, 1L, 1L, 1L, 2L, 3L, 3L, 2L,
6L, 8L, 4L, 3L, 1L, 6L, 6L, 1L, 1L, 1L, 4L, 4L, 8L, 3L, 3L, 2L,
2L, 4L, 8L, 6L, 4L, 8L, 3L, 3L, 3L, 5L, 4L, 1L, 2L, 2L, 3L, 4L,
2L, 5L, 4L, 8L, 3L, 8L, 2L, 3L, 4L, 8L, 3L, 6L, 3L, 6L, 6L, 3L,
3L, 8L, 8L, 3L, 6L, 3L, 3L, 2L, 5L, 3L, 6L, 3L, 2L, 3L, 3L, 3L,
4L, 3L, 4L, 3L, 4L, 3L, 2L, 2L, 3L, 6L, 4L, 6L, 3L, 3L, 6L, 3L,
4L, 3L, 2L, 3L, 4L, 4L, 4L, 6L, 6L, 3L, 6L, 4L, 7L, 8L, 6L, 8L,
8L, 4L, 6L, 4L, 4L, 3L, 4L, 2L, 3L, 2L, 4L, 6L, 4L, 6L, 4L, 6L,
4L, 6L, 3L, 4L, 3L, 6L, 4L, 4L, 8L, 4L, 8L, 3L, 3L, 6L, 6L, 3L,
4L, 3L, 3L, 3L, 3L, 6L, 3L, 3L, 3L, 4L, 2L, 4L, 3L, 3L, 6L, 6L,
4L, 3L, 2L, 3L, 6L, 4L, 3L, 3L, 2L, 3L, 2L, 6L, 3L, 3L, 3L, 3L,
3L, 3L, 3L, 3L, 2L, 3L, 3L, 6L, 6L, 2L, 3L, 6L, 3L, 2L, 3L, 6L,
4L, 3L, 3L, 3L, 6L, 6L, 4L, 3L, 8L, 8L, 4L, 3L, 2L, 2L, 3L, 2L,
3L, 8L, 2L, 3L, 6L, 3L, 3L, 4L, 3L, 3L, 4L, 3L, 3L, 3L, 3L, 8L,
8L, 2L, 3L, 3L, 2L, 2L, 3L, 2L, 2L, 6L, 2L, 3L, 6L, 6L, 8L, 3L,
4L, 3L, 3L, 6L, 6L, 3L, 3L, 3L, 2L, 6L, 2L, 3L, 6L, 8L, 3L, 4L,
4L, 6L, 4L, 8L, 4L, 4L, 2L, 6L, 8L, 6L, 4L, 8L, 3L, 8L, 1L, 8L,
2L, 2L, 2L, 2L, 3L, 3L, 6L, 3L, 3L, 6L, 3L, 3L, 3L, 2L, 3L, 3L,
3L, 2L, 4L, 3L, 4L, 2L, 2L, 3L, 3L, 3L, 3L, 3L, 3L, 2L, 2L, 3L,
3L, 6L, 3L, 3L, 6L, 3L, 2L, 3L, 3L, 3L, 4L, 3L, 3L, 1L, 1L, 1L,
1L, 3L, 3L, 3L, 3L, 6L, 4L, 3L, 3L, 6L, 3L, 6L, 6L, 4L, 6L, 4L,
6L, 4L, 4L, 6L, 6L, 6L, 3L, 6L, 3L, 3L, 3L, 2L, 3L, 3L, 3L, 3L,
2L, 2L, 8L, 4L, 4L, 6L, 4L, 8L, 6L, 4L, 3L, 4L, 3L, 4L, 6L, 4L,
6L, 6L, 6L, 4L, 6L, 6L, 4L, 4L, 4L, 2L, 6L, 4L, 2L, 4L, 4L, 3L,
4L, 6L, 6L, 6L, 3L, 4L, 6L, 4L, 3L, 3L, 3L, 3L, 3L, 3L, 2L, 2L,
8L, 4L, 4L, 6L, 2L, 8L, 8L, 4L, 6L, 3L, 4L, 8L, 8L, 5L, 3L, 2L,
4L, 3L, 4L, 6L, 4L, 3L, 4L, 3L, 4L, 4L, 4L, 3L, 3L, 3L, 4L, 3L,
6L, 4L, 6L, 6L, 6L, 2L, 3L, 6L, 6L, 3L, 4L, 3L, 2L, 8L, 4L, 8L,
8L, 3L, 3L, 4L, 6L, 6L, 4L, 6L, 6L, 3L, 4L, 4L, 4L, 3L, 7L, 4L,
6L), .Label = c("", "IPH8005", "ISB7005", "VIP1200", "VIP1216",
"VIP1232", "VIP2262NA", "VIP2502W"), class = "factor"), BoxVendor = structure(c(2L,
2L, 3L, 3L, 2L, 3L, 2L, 2L, 3L, 3L, 3L, 2L, 2L, 3L, 3L, 3L, 2L,
3L, 4L, 3L, 2L, 2L, 3L, 2L, 3L, 3L, 4L, 2L, 3L, 3L, 2L, 3L, 4L,
4L, 3L, 3L, 4L, 2L, 3L, 2L, 3L, 2L, 2L, 2L, 4L, 4L, 3L, 3L, 2L,
3L, 3L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L,
2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L,
1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L,
1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 3L, 4L, 3L, 3L, 3L, 3L, 3L,
3L, 2L, 3L, 3L, 2L, 2L, 4L, 4L, 3L, 2L, 2L, 2L, 4L, 3L, 3L, 2L,
3L, 2L, 3L, 2L, 3L, 3L, 4L, 3L, 3L, 2L, 2L, 3L, 2L, 3L, 3L, 4L,
3L, 4L, 2L, 4L, 3L, 2L, 2L, 3L, 2L, 2L, 3L, 2L, 3L, 2L, 2L, 3L,
3L, 3L, 3L, 2L, 3L, 3L, 4L, 3L, 4L, 3L, 3L, 2L, 2L, 3L, 2L, 3L,
3L, 2L, 3L, 3L, 3L, 3L, 3L, 2L, 3L, 3L, 3L, 2L, 3L, 3L, 2L, 3L,
4L, 2L, 4L, 4L, 3L, 3L, 3L, 2L, 3L, 3L, 2L, 3L, 3L, 3L, 2L, 2L,
2L, 2L, 4L, 3L, 3L, 3L, 2L, 4L, 2L, 2L, 3L, 3L, 2L, 3L, 2L, 3L,
2L, 2L, 2L, 2L, 3L, 3L, 2L, 3L, 4L, 3L, 4L, 2L, 2L, 3L, 2L, 4L,
4L, 2L, 3L, 3L, 4L, 3L, 2L, 2L, 3L, 3L, 2L, 3L, 3L, 3L, 4L, 3L,
2L, 3L, 2L, 2L, 2L, 3L, 2L, 2L, 4L, 3L, 2L, 2L, 2L, 4L, 2L, 3L,
3L, 2L, 2L, 2L, 4L, 2L, 3L, 2L, 2L, 2L, 2L, 2L, 3L, 3L, 3L, 2L,
2L, 4L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 2L, 4L, 3L, 3L, 3L, 2L, 4L,
3L, 3L, 3L, 3L, 3L, 3L, 3L, 2L, 2L, 2L, 3L, 3L, 3L, 2L, 2L, 2L,
3L, 3L, 2L, 3L, 3L, 3L, 3L, 3L, 2L, 4L, 3L, 2L, 3L, 2L, 3L, 3L,
3L, 3L, 4L, 4L, 2L, 3L, 3L, 2L, 2L, 2L, 2L, 3L, 2L, 3L, 2L, 3L,
3L, 3L, 3L, 4L, 2L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 4L, 2L,
3L, 3L, 2L, 3L, 3L, 3L, 2L, 3L, 2L, 3L, 2L, 3L, 2L, 3L, 3L, 2L,
2L, 2L, 2L, 2L, 3L, 3L, 2L, 3L, 2L, 1L, 1L, 2L, 2L, 2L, 2L, 4L,
2L, 2L, 2L, 3L, 2L, 2L, 2L, 4L, 3L, 3L, 2L, 3L, 2L, 4L, 3L, 2L,
2L, 2L, 4L, 2L, 4L, 2L, 3L, 4L, 4L, 2L, 3L, 2L, 2L, 3L, 1L, 3L,
2L, 4L, 2L, 2L, 3L, 3L, 3L, 2L, 4L, 3L, 4L, 3L, 2L, 2L, 2L, 2L,
3L, 4L, 3L, 4L, 3L, 3L, 3L, 2L, 2L, 2L, 3L, 3L, 2L, 3L, 3L, 2L,
2L, 2L, 3L, 3L, 2L, 3L, 3L, 2L, 3L, 3L, 3L, 3L, 4L, 4L, 3L, 2L,
3L, 3L, 4L, 3L, 3L, 3L, 2L, 3L, 3L, 3L, 3L, 2L, 4L, 2L, 2L, 3L,
3L, 4L, 3L, 2L, 3L, 2L, 2L, 3L, 3L, 4L, 4L, 3L, 3L, 3L, 4L, 2L,
3L, 3L, 2L, 3L, 3L, 3L, 3L, 2L, 2L, 3L, 3L, 4L, 2L, 3L, 3L, 3L,
3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 4L, 3L, 3L, 3L, 3L, 1L, 1L, 1L,
1L, 4L, 2L, 2L, 4L, 3L, 3L, 3L, 2L, 1L, 3L, 3L, 1L, 1L, 1L, 3L,
3L, 3L, 2L, 2L, 4L, 4L, 3L, 3L, 3L, 3L, 3L, 2L, 2L, 2L, 3L, 3L,
1L, 4L, 4L, 2L, 3L, 4L, 3L, 3L, 3L, 2L, 3L, 4L, 2L, 3L, 3L, 2L,
3L, 2L, 3L, 3L, 2L, 2L, 3L, 3L, 2L, 3L, 2L, 2L, 4L, 3L, 2L, 3L,
2L, 4L, 2L, 2L, 2L, 3L, 2L, 3L, 2L, 3L, 2L, 4L, 4L, 2L, 3L, 3L,
3L, 2L, 2L, 3L, 2L, 3L, 2L, 4L, 2L, 3L, 3L, 3L, 3L, 3L, 2L, 3L,
3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 2L, 3L, 4L, 2L, 4L, 3L,
3L, 3L, 3L, 3L, 3L, 3L, 3L, 2L, 3L, 2L, 3L, 3L, 3L, 3L, 3L, 3L,
2L, 2L, 3L, 3L, 2L, 3L, 2L, 2L, 2L, 2L, 3L, 2L, 2L, 2L, 3L, 4L,
3L, 2L, 2L, 3L, 3L, 3L, 2L, 4L, 2L, 3L, 3L, 2L, 2L, 4L, 2L, 4L,
3L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 4L, 2L, 2L, 3L, 3L, 4L, 2L,
3L, 2L, 4L, 2L, 3L, 3L, 2L, 2L, 2L, 3L, 3L, 3L, 2L, 3L, 3L, 3L,
2L, 4L, 4L, 2L, 4L, 2L, 3L, 4L, 2L, 3L, 2L, 2L, 3L, 2L, 2L, 3L,
2L, 2L, 2L, 2L, 3L, 3L, 4L, 2L, 2L, 4L, 4L, 2L, 4L, 4L, 3L, 4L,
2L, 3L, 3L, 3L, 2L, 3L, 2L, 2L, 3L, 3L, 2L, 2L, 2L, 4L, 3L, 4L,
2L, 3L, 3L, 2L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 4L, 3L, 3L, 3L, 3L,
3L, 2L, 3L, 1L, 3L, 4L, 4L, 4L, 4L, 2L, 2L, 3L, 2L, 2L, 3L, 2L,
2L, 2L, 4L, 2L, 2L, 2L, 4L, 3L, 2L, 3L, 4L, 4L, 2L, 2L, 2L, 2L,
2L, 2L, 4L, 4L, 2L, 2L, 3L, 2L, 2L, 3L, 2L, 4L, 2L, 2L, 2L, 3L,
2L, 2L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 3L, 3L, 2L, 2L, 3L, 2L,
3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 2L, 3L, 2L, 2L, 2L,
4L, 2L, 2L, 2L, 2L, 4L, 4L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 2L,
3L, 2L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 4L, 3L,
3L, 4L, 3L, 3L, 2L, 3L, 3L, 3L, 3L, 2L, 3L, 3L, 3L, 2L, 2L, 2L,
2L, 2L, 2L, 4L, 4L, 3L, 3L, 3L, 3L, 4L, 3L, 3L, 3L, 3L, 2L, 3L,
3L, 3L, 3L, 2L, 4L, 3L, 2L, 3L, 3L, 3L, 2L, 3L, 2L, 3L, 3L, 3L,
2L, 2L, 2L, 3L, 2L, 3L, 3L, 3L, 3L, 3L, 4L, 2L, 3L, 3L, 2L, 3L,
2L, 4L, 3L, 3L, 3L, 3L, 2L, 2L, 3L, 3L, 3L, 3L, 3L, 3L, 2L, 3L,
3L, 3L, 2L, 3L, 3L, 3L), .Label = c("", "CISCO", "MOTOROLA",
"PACE"), class = "factor"), Receiver_TotalVideoDecoderErrors = c(3L,
204L, 0L, 0L, 3393L, 909L, 1556L, 48L, 0L, 0L, 0L, 182L, 19L,
0L, 0L, 0L, 77L, 0L, 0L, 0L, 6L, 1002L, 10L, 0L, 0L, 6938L, 0L,
299L, 49L, 245L, 0L, 41L, 0L, 0L, 717L, 31L, 0L, 75L, 37L, 71L,
0L, 40L, 0L, 0L, 0L, 0L, 0L, 0L, 1L, 0L, 0L, 0L, 0L, 0L, 0L,
0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L,
0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L,
0L, 0L, 1230L, 1230L, 1230L, 1230L, 1230L, 1230L, 1230L, 1230L,
1230L, 1230L, 1230L, 1230L, 1230L, 1230L, 1230L, 1230L, 0L, 0L,
0L, 0L, 0L, 0L, 0L, 0L, 0L, 22L, 0L, 0L, 1384L, 95L, 0L, 0L,
0L, 437L, 119L, 910L, 0L, 0L, 8679L, 20L, 68L, 7L, 0L, 0L, 16L,
0L, 0L, 0L, 0L, 74L, 1L, 0L, 82L, 0L, 0L, 0L, 0L, 0L, 21L, 0L,
0L, 279L, 40L, 0L, 1483L, 3L, 0L, 132L, 0L, 0L, 171L, 0L, 0L,
0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 90L, 0L, 0L, 0L, 0L,
0L, 111L, 0L, 0L, 0L, 0L, 0L, 18L, 0L, 0L, 0L, 217L, 0L, 0L,
1687L, 0L, 0L, 25L, 0L, 0L, 0L, 0L, 0L, 60L, 0L, 0L, 7L, 0L,
0L, 0L, 0L, 1L, 20L, 0L, 0L, 0L, 0L, 0L, 230L, 0L, 169L, 0L,
0L, 0L, 889L, 0L, 3L, 0L, 48L, 2951L, 10L, 531L, 0L, 0L, 0L,
0L, 0L, 232L, 0L, 0L, 125L, 0L, 39L, 0L, 0L, 262L, 0L, 0L, 0L,
0L, 1270L, 6L, 0L, 0L, 88L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 297L,
124L, 419L, 0L, 483L, 280L, 0L, 0L, 127L, 93L, 368L, 0L, 209571L,
0L, 0L, 21L, 62L, 11L, 0L, 501L, 0L, 169L, 34L, 32L, 25L, 188L,
0L, 1596L, 0L, 41L, 183L, 0L, 805L, 3L, 0L, 0L, 0L, 0L, 297L,
90L, 0L, 0L, 0L, 0L, 691L, 0L, 0L, 4L, 0L, 0L, 0L, 0L, 0L, 23L,
52L, 0L, 0L, 0L, 0L, 58L, 18L, 93L, 0L, 0L, 0L, 0L, 0L, 0L, 0L,
0L, 9L, 0L, 0L, 11381L, 0L, 34L, 0L, 0L, 26L, 0L, 0L, 0L, 318L,
0L, 0L, 36L, 0L, 6534L, 22L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L,
0L, 18L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 35L, 0L, 0L,
30L, 0L, 0L, 0L, 51L, 0L, 7L, 0L, 84L, 0L, 9L, 0L, 0L, 48L, 65L,
23L, 0L, 60312L, 0L, 0L, 28L, 0L, 32L, 0L, 0L, 283L, 406L, 44L,
0L, 0L, 0L, 2L, 824L, 0L, 0L, 2487L, 95L, 0L, 0L, 0L, 0L, 0L,
56L, 0L, 1L, 4640L, 12L, 3626L, 0L, 0L, 0L, 420L, 0L, 0L, 0L,
49L, 0L, 78L, 8L, 0L, 0L, 0L, 380L, 0L, 0L, 7L, 1194L, 0L, 0L,
0L, 0L, 0L, 0L, 0L, 29L, 489L, 584L, 47L, 2L, 0L, 0L, 0L, 0L,
0L, 0L, 899L, 120L, 0L, 0L, 0L, 26L, 656L, 0L, 0L, 0L, 50L, 0L,
0L, 0L, 0L, 0L, 6L, 14L, 0L, 0L, 0L, 0L, 0L, 0L, 89L, 0L, 0L,
0L, 0L, 0L, 104L, 0L, 0L, 0L, 0L, 0L, 217L, 0L, 50L, 14L, 0L,
0L, 0L, 0L, 21L, 0L, 73L, 403L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L,
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0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 1L, 150L, 65L, 0L, 0L, 0L, 78L,
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3L, 831L, 1396L, 545L, 0L, 226L, 79L, 0L, 0L, 101L, 0L, 3370L,
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)), .Names = c("BoxType", "BoxVendor", "Receiver_TotalVideoDecoderErrors"
), class = "data.frame", row.names = c(NA, -999L))
The
ifelse
wayAssuming your CSV has been loaded into a data frame called
boxdata
with the same column names as in the CSV:Explanation
The best way to demonstrate
ifelse
is by example:Hopefully it's clear what this function does. Obviously you don't need to always name the arguments as long as they're in the right order; I'm just doing it here so you can see exactly what's going on.
However, you'll notice that the expression
does not conform to this standard. It works because two things happen "under the hood":
test
is "coerced" to logical, so if I pass in something liketest = c(1, 3, 0)
the value oftest
will be replaced withas.logical(test)
, sotest = c(1, 3, 0)
becomestest = c(TRUE, TRUE, FALSE)
.yes
andno
are "recycled" if they are shorter thantest
, and truncated if they are longer.Recycling is again best demonstrated by example:
These things are documented, but they're easy to miss if you're not used to reading the R help files.
And finally, the help file also says this, which is worth pointing out:
This means that
ifelse(c(NA, 1, 0, 1), 99, 100)
returnsc(NA, 99, 100, 99)
.So
is equivalent to
The slick way
Or let argument recycling to do the work for you. Shorter and more efficient, but maybe less readable to someone who isn't familiar with R:
or
Explanation
First, the statement
is equivalent to:
Finally, recycling is applied to subsetting as well:
So the entire thing is equivalent to:
The long way (suggested here)
This way doesn't need much explanation. It's a lot more typing but it's easy to read and it's flexible: