sansa {sansa}

Title

Description

Title

Usage

sansa(x, y, lambda = 0, ksel = 3)

Arguments

x

Input predictor as a dataframe

y

Target variable as factor

lambda

Lambda parameter to select distribution of synthetic variables

ksel

K parameter to choose how many neighbors are used in calculations

Value

A list with two elements: x contains predictors with synthetic data, y contains target with synthetic data.

Examples

library(sansa)
library(ggplot2)
minority = data.frame(x1 = rnorm(10, 10, 3),
                      x2 = rnorm(10, 25, 10),
                      target = "true")
majority = data.frame(x1 = rnorm(100, 4, 2),
                      x2 = rnorm(100, 30, 10),
                      target = "false")

dataset = rbind(minority, majority)

ggplot(dataset) + geom_point(aes(x1, x2, color = target))
sansaobject = sansa(x = dataset[,1:2], y = dataset$target, lambda = 1, ksel = 3)

balanced <- sansaobject$x
balanced$target = sansaobject$y

ggplot(balanced) + geom_point(aes(x1, x2, color = target))