create_neural_network: Create neural network emulator, using neuralnet package
In kalden/spartan: Simulation Parameter Analysis R Toolkit ApplicatioN: 'spartan'

Create neural network emulator, using neuralnet package

1 2	create_neural_network(formula, training_set, fold_number, normalised_data, network_structure, number_of_generations)

`formula`	Parameters and measures formula to use in creating the network
`training_set`	Training data on which to train the network
`fold_number`	Number of the fold being created in k-fold cross validation
`normalised_data`	Normalised version of the training data
`network_structure`	Hidden layers structure to use to create the network
`number_of_generations`	Number of generations to train the network within in the hope of convergence, else training terminates