View source: R/functionsTransformation.R
twoStepTransform | R Documentation |
twoStepTransform
is a transformation that can
be applied to a matrix of data. The resulting matrix is both
subject-centered and bias corrected, a technique called
the CM technique \insertCiteb12,c05,m08superb
twoStepTransform(dta, variables)
dta |
a data.frame containing the data in wide format; |
variables |
a vector of column names on which the transformation will be applied. the remaining columns will be left unchanged |
a data.frame of the same form as dta with the variables transformed.
This function is useful when passed to the argument preprocessfct
of superb()
where it performs a modification of the data matrix.
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