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LURE: trees

Return some trees

tim@menzies.us
August'17

This code is a convenience function to return trees from data files known to ship with LUA.

 
require "show"
local THE=require "config"
local TBL=require "tbl"
local TREE=require "sdtree"

Main driver. Reads, discretize a table then generates a decision tree.

 
local function create(f,y)
  y = y or "goal1"
  f = f or "/data/auto.csv"
  f = THE.here .. f
  return TREE.grow(
           TBL.discretize( TBL.create(f),y), 
                           y) end

Sample data

 
local function auto(y)      
   return create("/data/auto.csv",y or "dom") end
local function pom3a(y)     
  return create("/data/POM3A_short.csv",y or "dom") end
local function xomo(y)      
  return create( "/data/xomo_all_short.csv",y or "dom") end

Sample data (with different goals)

 
local function autogoal1()  return auto("goal1") end
local function pom3agoal1() return pom3a("goal1") end
local function xomogoal1(y) return xomo("goal1") end

External interface

 
return {auto=auto, pom3a=pom3a, xomo=xomo, autogoal1=autogoal1,
        pom3agoal1=pom3agoal1, xomogoal1=xomogoal1}

Legal

LURE, Copyright (c) 2017, Tim Menzies All rights reserved, BSD 3-Clause License

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