R/vtreat_coders.R
piecewise_linear.Rd
vtreat
custom coder based on RcppDynProg::solve_for_partition()
.
piecewise_linear(varName, x, y, w = NULL)Arguments varName
character, name of variable to work on.
xnumeric, input values.
ynumeric, values to estimate.
wnumeric, weights.
Examplespiecewise_linear("x",
1:8,
c(1,
2,
3,
4,
4,
3,
2,
1))#> [1] 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 #> attr(,"approx_table") #> predXs predYs #> 1 1 2.5 #> 2 8 2.5 #> attr(,"method") #> [1] "linear"
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