Option threshold2Opt = obuilder.withLongName("threshold_2").withRequired(false).withShortName("t2")
.withArgument(abuilder.withName("threshold_2").withMinimum(1).withMaximum(1).create())
.withDescription("The T1 distance threshold.").create();
Group group = gbuilder.withName("Options").withOption(inputOpt).withOption(outputOpt)
.withOption(modelOpt).withOption(helpOpt).withOption(convergenceDeltaOpt).withOption(threshold1Opt)
.withOption(maxIterOpt).withOption(threshold2Opt).create();
try {
Parser parser = new Parser();