| filtering | Filter data before feeding som algorithm for gene expression data | 
| normalize | normalize data before feeding som algorithm | 
| plot.som | Visualizing a SOM | 
| print.som | summarize a som object | 
| qerror | quantization accuracy | 
| som | Function to train a Self-Organizing Map | 
| som.init | Function to train a Self-Organizing Map | 
| som.project | Function to train a Self-Organizing Map | 
| som.train | Function to train a Self-Organizing Map | 
| som.update | Function to train a Self-Organizing Map | 
| summary.som | summarize a som object | 
| yeast | yeast cell cycle |