Search found 2 matches
- Thu May 06, 2010 9:29 am
- Forum: Data Manipulation
- Topic: Differences
- Replies: 3
- Views: 4193
Re: Differences
Brilliant, thanks!
- Thu May 06, 2010 9:24 am
- Forum: Data Manipulation
- Topic: Differences
- Replies: 3
- Views: 4193
Differences
This is probably a stupid question...
I know that d(x) calculates the first difference, i.e. x - x(-1), but how do I find the difference in the previous period, i.e. x(-1) - x(-2)? Is it just d(x(-1))?
Thanks!
Charlie
I know that d(x) calculates the first difference, i.e. x - x(-1), but how do I find the difference in the previous period, i.e. x(-1) - x(-2)? Is it just d(x(-1))?
Thanks!
Charlie