Returns suitably lagged and iterated differences.
diff(x, ...) ## S3 method for class 'default': diff((x, lag = 1, differences = 1, ...)) ## S3 method for class 'POSIXt': diff((x, lag = 1, differences = 1, ...)) ## S3 method for class 'Date': diff((x, lag = 1, differences = 1, ...))
- a numeric vector or matrix containing the values to be differenced.
- an integer indicating which lag to use.
- an integer indicating the order of the difference.
- further arguments to be passed to or from methods.
diff is a generic function with a default method and ones for classes
difference is larger than one this algorithm is applied recursively to
x. Note that the returned value is a vector which is shorter than
x is a matrix then the difference operations are carried out on each column separately.
Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988) The New S Language. Wadsworth & Brooks/Cole.
Documentation reproduced from R 3.0.1. License: GPL-2.