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shamilnabiyev/feature_scaling.R

Last active June 1, 2019 23:49
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Rescaling (min-max normalization) in R
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feature_scaling.R
age <- c(0, 2, 3, 5, 7, 10)
income <- c(0, 450, 900, 1200, 3000, 50000)
scale <- function(val, min_, max_) {val - min_}/(max_ - min_)
sapply(age, scale, min(age), max(age))
# Output: 0.0 0.2 0.3 0.5 0.7 1.0
sapply(income, scale, min(income), max(income))
# Output: 0.000 0.009 0.018 0.024 0.060 1.000
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