public IIntSequenceLoader intSequenceLoader(List<String> files)
throws IOException
{
// test first file
String firstFile = files.get(0);
CachedAsciiFileReader firstReader = IO.create.asciiReader(firstFile);
String[] words = Strings.util.split(firstReader.getLine(0));
IIntReader sequenceLoader;
if (words.length == 1)
{
sequenceLoader = new IntSequenceReaderAsciiDense();
}