Description Usage Arguments Value See Also Examples
Scale data or a model by a given factor.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17  ## S3 method for class 'TSdata'
scale(x, center=FALSE, scale=NULL)
## S3 method for class 'TSestModel'
scale(x, center=FALSE, scale=NULL)
## S3 method for class 'ARMA'
scale(x, center=FALSE, scale=NULL)
## S3 method for class 'innov'
scale(x, center=FALSE, scale=NULL)
## S3 method for class 'nonInnov'
scale(x, center=FALSE, scale=NULL)
checkScale(x, scale)
## S3 method for class 'TSestModel'
checkScale(x, scale)
## S3 method for class 'TSmodel'
checkScale(x, scale)

x 
TSdata, TSmodel or an object containing these. 
center 
to match generic arguments, not currently used. 
scale 
A list with two matrices or vectors, named input and output,
giving the multiplication factor for inputs and outputs.
Vectors are treated as diagonal matrices.

The resulting data or model is different from the original in proportion to scale. ie. if S and T are output and input scaling matrices then y'(t) = S y(t) where y' is the new output u'(t) = S u(t) where u' is the new input
For models the result has inputs and outputs (and innovations) which are scaled as if data scaling had been applied to them as above. Thus if the input and output scales are diagonal matrices or scalars the plot of the predictions and residuals for l(scale(model,scale=somescale), scale(data, scale=somescale)) while have the same appearance as l(model, data) but will be scaled differently.
1 2 3 4 5 6 7 8 9 10  data("eg1.DSE.data.diff", package="dse")
# This is a simple example. Usually scale would have something
# to do with the magnitude of the data.
z < scale(eg1.DSE.data.diff,
scale=list(input=rep(2, nseriesInput(eg1.DSE.data.diff)),
output=rep(2,nseriesOutput(eg1.DSE.data.diff))))
model < estVARXls(eg1.DSE.data.diff)
model < scale(model,
scale=list(input=rep(2, nseriesInput(eg1.DSE.data.diff)),
output=rep(2,nseriesOutput(eg1.DSE.data.diff))))

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