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random-forest-example

Código usada para apresentação sobre Random Forest na matéria Aprendizado de Máquina no curso de Mestrado em Engenharia da Computação no Instituto de Pesquisas Tecnológicas (IPT)

Variáveis Quantitativas e Categóricas

Have you ever smoked cigarettes regulary, at leat one cigarette every day for 30 days?

  • TREG1 = ever smoked regulary 1=yes 2=no (REGULAR SMOKING)

  • BIO_SEX = 1=mas 2=fem

  • HISPANIC = 1=yes 2=no

  • WHITE = 1=yes 2=no

  • BLACK = 1=yes 2=no

  • NAMERICAN = 1=yes 2=no

  • ASIAN = 1=yes 2=no

  • ALCEVR1 = ever drank alcohol 1=yes 2=no

  • ALCPROBS1 = ever smoked marijuana 1=yes 2=no

  • marever1 = ever 1=yes 2=no

  • cocever1 = ever used cocaine 1=yes 2=no

  • inhever1 = ever used inhalents 1=yes 2=no

  • cigavail = cigarette available in home 1=yes 2=no

  • DEP1 = depression scale

  • ESTEEM1 = self esteem scale

  • VIOL1 = violent behavior scale

  • PASSIST = either parnet on public assistance 1=yes 2=no

  • DEVIANT1 = deviant behavior scale

  • SCHCONN1 = school connectedness scale

  • GPA1 = grade point average - 4.0 scale

  • EXPEL1 = ever expessed from school 1=yes 2=no

  • FAMCONCT = family connectedness scale

  • PARACTV = parent activities scale

  • PARPRES = parental presence scale

Diagrama Árvore de Decisão

Como o diagrama da árvore ilustra, os adolescentes brancos que já usaram maconha e pontuaram maior ou igual a 4,05 na escala de comportamento desviante são mais propensos a fumar regularmente.

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