RESCALE Subcommand (ADP command)
The RESCALE subcommand is used to rescale continuous
fields. Different methods are available for inputs and the target.
INPUT Keyword
The INPUT keyword specifies the method for rescaling
continuous input fields.
- Z score rescaling is performed by default with a mean of 0 and standard deviation of 1.
- If there are no continuous inputs,
INPUTis ignored.
ZSCORE(MEAN=value SD=value). Z score transformation. Using
the observed mean and standard deviation as population parameter estimates,
the fields are standardized and then the z scores are mapped to the
corresponding values of a normal distribution with the specified MEAN and SD.
Specify a number for MEAN and a positive number
for SD. The defaults are 0 and 1, respectively, corresponding
to standardized rescaling.
MINMAX(MIN=value MAX=value). Min-Max transformation. Using
the observed minimum and maximum as population parameter estimates,
the fields are mapped to the corresponding values of a uniform distribution
with the specified MINand MAX. Specify
numbers with MAX greater than MIN.
NONE. Do not rescale inputs.
TARGET Keyword
The TARGET keyword specifies the method for rescaling
a continuous target.
- Box-Cox rescaling is performed by default with a target mean of 0 and target standard deviation of 1.
- If there is no target, or it is not continuous,
TARGETis ignored.
BOXCOX(MEAN=value SD=value). Box-Cox transformation. This
transforms a continuous target using the Box-Cox transformation into
a field that has an approximately normal distribution with the specified MEAN and SD.
Specify a number for MEANand a positive number for SD.
The defaults are 0 and 1, respectively.
NONE. Do not rescale target.