{weight_dim} not set at /home/gotszlin/perl/lib/perl5/site_perl/5.8.5//AI/NeuralNet/Kohonen.pm line 209

AI::NeuralNet::Kohonen::new('AI::NeuralNet::Kohonen', 'map_dim_x', 39, 'map_dim_y', 19, 'epochs', 10, 'input', 'ARRAY(0x926af84)', ...) called at system_net.pl line 50
	NSTAD_net::som_train(39, 19, 10, 'ARRAY(0x926af84)', 'my_first_som.txt') called at system_main.pl line 35
Can't call method "train" on an undefined value at system_net.pl line 56.