Calculate the percent change relative to the data lag periods prior.
Usage
## S3 method for class 'TSdata':
percentChange(obj, base=NULL, lag=1, cumulate=FALSE, e=FALSE, ...)
## S3 method for class 'TSestModel':
percentChange(obj, base=NULL, lag=1, cumulate=FALSE, e=FALSE, ...)
Arguments
obj
An object of class TSdata or TSestModel
e
see the default method.
base
see the default method.
lag
see the default method.
cumulate
see the default method.
...
arguments passed to other methods.
Value
For an object of class TSdata the percent change calculation is done
with the output data and the result is an object of class TSdata (or a list of
objects of class TSdata).
For an object of class TSestModel the percent change calculation is done
with estimates$pred and the result is an object of class TSdata (or a
list of objects of class TSdata).