// method to mutate one weight matrix
double[,] MutateOneMatrix(double[,] matrix, int numMutations)
{
// find dimensions of matrix
int dim1 = matrix.GetLength(0);
int dim2 = matrix.GetLength(1);
// create and populate copied weight matrix
double[,] output = new double[dim1, dim2];
for (int i = 0; i < dim1; i++)
{
for (int j = 0; j < dim2; j++)
{
output[i, j] = matrix[i, j];
}
}
// for each mutation, randomly select one value and mutate it
int tempDim1;
int tempDim2;
for (int i = 0; i < numMutations; i++)
{
tempDim1 = Prob.Next(dim1);
tempDim2 = Prob.Next(dim2);
output[tempDim1, tempDim2] += Prob.Gaussian(MutateSTD, 0.0);
}
// return mutated matrix
return(output);
}
// method to create a randomly initialized weight matrix
double[,] CreateRandomMatrix(int dim1, int dim2)
{
// initialize matrix with input dimensions
double[,] output = new double[dim1, dim2];
// populate output with random elements
for (int i = 0; i < dim1; i++)
{
for (int j = 0; j < dim2; j++)
{
output[i, j] = Prob.Gaussian(WeightInitSTD, 0.0);
}
}
return(output);
}