Min-max normalization transforms each value by subtracting its minimum and
dividing by its range (maximum-minimum). The result is a new variable with a
minimum of zero and a maximum of one
Usage
min_max(data)
Value
It returns a datafame of normalized data
Arguments
data
dataframe with rows = observations and columns = quantiative
variables
Details
Change the value of variable to negative if it has negative polarity
References
OECD/European Union/EC-JRC (2008), Handbook on Constructing
Composite Indicators: Methodology and User Guide, OECD Publishing, Paris,
<https://doi.org/10.1787/9789264043466-en>