public static Example readExample(BufferedReader in) throws IOException {
String line = readLineSkip(in);
if (line == null) {
return null;
}
line = line.trim();
String rec = line.split("\\s")[0];
int label = Integer.parseInt(rec);
String vector = "";
if (line.length() > rec.length()) {
vector = line.substring(rec.length() + 1);
}
SparseVector sv = SparseVector.load(vector);
return new Example(label, sv);
}
