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Perform standarization of vector relative to another.
ident(x, y = x)
a scaled y.
y
a numeric vector, matrix or data frame
an optional numeric vector, matrix or data frame. Default is x.
Scale y based on x component by component. For example, if both are a matrix, \(y[,i]=(y[,]-min(x[,i]))/(max(x[,i])-min(x[,i]))\).
x