Testado em: Linux (kernel 3.2)
Programas necessários:
- sed

Modo de uso: ./arff2MLPinJava "arquivo.arff" <número de instâncias>

Logo após fazer a conversão do arquivo arff, é necessário utilizar um programa de substituição de textos para substituir qualquer valor que não seja numérico real para numérico real.

Exemplo: ./arff2MLPinJava teste 5

Nesse exemplo é necessário substituir o valor "Iris-setosa" por um valor numérico real.
Entrada:

...
@data
   5.1,3.5,1.4,0.2,Iris-setosa
   4.9,3.0,1.4,0.2,Iris-setosa
   4.7,3.2,1.3,0.2,Iris-setosa
   4.6,3.1,1.5,0.2,Iris-setosa
   5.0,3.6,1.4,0.2,Iris-setosa
   5.4,3.9,1.7,0.4,Iris-setosa
   4.6,3.4,1.4,0.3,Iris-setosa
   5.0,3.4,1.5,0.2,Iris-setosa
   4.4,2.9,1.4,0.2,Iris-setosa
   4.9,3.1,1.5,0.1,Iris-setosa

Saída:

trainInputs[0][0] = 5.1;
trainInputs[0][1] = 3.5;
trainInputs[0][2] = 1.4;
trainInputs[0][3] = 0.2;
trainOutput[0] = Iris-setosa;

trainInputs[1][0] = 4.9;
trainInputs[1][1] = 3.0;
trainInputs[1][2] = 1.4;
trainInputs[1][3] = 0.2;
trainOutput[1] = Iris-setosa;

trainInputs[2][0] = 4.7;
trainInputs[2][1] = 3.2;
trainInputs[2][2] = 1.3;
trainInputs[2][3] = 0.2;
trainOutput[2] = Iris-setosa;

trainInputs[3][0] = 4.6;
trainInputs[3][1] = 3.1;
trainInputs[3][2] = 1.5;
trainInputs[3][3] = 0.2;
trainOutput[3] = Iris-setosa;

trainInputs[4][0] = 5.0;
trainInputs[4][1] = 3.6;
trainInputs[4][2] = 1.4;
trainInputs[4][3] = 0.2;
trainOutput[4] = Iris-setosa;

trainInputs[5][0] = 5.4;
trainInputs[5][1] = 3.9;
trainInputs[5][2] = 1.7;
trainInputs[5][3] = 0.4;
trainOutput[5] = Iris-setosa;

trainInputs[6][0] = 4.6;
trainInputs[6][1] = 3.4;
trainInputs[6][2] = 1.4;
trainInputs[6][3] = 0.3;
trainOutput[6] = Iris-setosa;

trainInputs[7][0] = 5.0;
trainInputs[7][1] = 3.4;
trainInputs[7][2] = 1.5;
trainInputs[7][3] = 0.2;
trainOutput[7] = Iris-setosa;

trainInputs[8][0] = 4.4;
trainInputs[8][1] = 2.9;
trainInputs[8][2] = 1.4;
trainInputs[8][3] = 0.2;
trainOutput[8] = Iris-setosa;

trainInputs[9][0] = 4.9;
trainInputs[9][1] = 3.1;
trainInputs[9][2] = 1.5;
trainInputs[9][3] = 0.1;
trainOutput[9] = Iris-setosa;