lagratio {FSA} | R Documentation |
Computes the ratio of lagged observations in a vector.
lagratio( x, lag = 1L, recursion = 1L, differences = recursion, direction = c("backward", "forward"), ... )
x |
A numeric vector or matrix. |
lag |
An integer representing the lag ‘distance’. |
recursion |
An integer that indicates the level of recursion for the calculations. A |
differences |
Same as |
direction |
A string that indicates the direction of calculation. A |
... |
Additional arguments to |
This function behaves similarly to diff()
except that it returns a vector or matrix of ratios rather than differences.
A vector or matrix of lagged ratios.
Derek H. Ogle, derek@derekogle.com
diff
## Backward lagged ratios # no recursion lagratio(1:10,1) lagratio(1:10,2) # with recursion lagratio(1:10,1,2) lagratio(1:10,2,2) ## Forward lagged ratios # no recursion lagratio(10:1,1,direction="forward") lagratio(10:1,2,direction="forward") # with recursion lagratio(10:1,1,2,direction="forward") lagratio(10:1,2,2,direction="forward")