MLP Train network description with newff

Hi. I had a few questions about some of the network components

For example

         for i=1:32
            mlpNet{i} = newff(TrainData, tmp(i,:), 10);
            mlpNet{i}.divideParam.trainRatio = 1;
            mlpNet{i}.divideParam.valRatio = 0;
            mlpNet{i}.divideParam.testRatio = 0;    
            mlpNet{i} = train(mlpNet{i} ,TrainData , tmp(i,:)) ;
        end

Description Code

• divideParam.trainRatio
• divideParam.valRatio
• divideParam.testRatio

What are the functions of the job؟