New Data Types

The following additional data types are used. The structure TNetDef is used to describe a single module. It is similar to the theoretical definition made in section 5.2 with some additional information. More complex data types are realized as classes.

enum    TFunction {bi_pol, uni_pol}; // for the activation function

typedef double*     TVector;     // for weights, input & output vectors

typedef struct TNetDef           // to describe a BP module
{
  int       no_inputs;           // # of inputs
  int       no_layers;           // # of layers (without the input layer)
  double    lambda;              // lambda value for activation function
  TFunction fct;                 // transfer function (bi_pol or uni_pol)
  int       neuronL[MAX_LAYER];  // # of neurons in each layer
};

enum TAction {new_net, load, store, train, train_inp,    // for the input
              train_dec, test, reset, work, help, quit}; // choice