Hi,
If `dat` is the dataset:
dat[!(dat$ID==2 &
as.numeric(gsub("-.*","",dat$Month))<5),]
ID Month Value
1 1 03-2014 1
2 1 04-2014 10
3 1 05-2014 50
6 2 05-2014 4
7 2 06-2014 2
A.K.
hello together, i have a short question, maybe you can help me.
I have a data.frame like this one
ID Month Value
1 1 03-2014 1
2 1 04-2014 10
3 1 05-2014 50
4 2 03-2014 8
5 2 04-2014 7
6 2 05-2014 4
7 2 06-2014 2
I now want to create another data.frame without the lines from ID==2 which are
earlier than 05-2014
The solution look like this one:
ID Month Value
1 1 03-2014 1
2 1 04-2014 10
3 1 05-2014 50
4 2 05-2014 4
5 2 06-2014 2
maybe you can help me.
Best regards. Mat