While the web application is useful to see the output of the neural network, we can also run the code for the neural network to really see how it works. The code in Chapter3/nnet.R allows us to do just that. This code has the same hyper-parameters as in the web application; this file allows you to run the neural network from the RStudio IDE. The following is the code that loads the data and sets the initial hyper-parameters for the neural network:
source("nnet_functions.R")data_sel <- "bulls_eye"........####################### neural network ######################hidden <- 3epochs <- 3000lr <- 0.5activation_ftn <- "sigmoid"df <- getData(data_sel) # from nnet_functionsX <- as.matrix(df[,1:2])Y <- as.matrix(df$Y)n_x=ncol(X) ...
