code: @SuppressWarnings("unchecked")
      public void handleExtraOptions() {
          dimension = (argOptions.hasOption("dimension"))
            ? argOptions.getIntOption("dimension")
            : DEFAULT_DIMENSION;
          if (argOptions.hasOption("loadVectors")) {
              generatorMap = (GeneratorMap<DoubleVector>) SerializableUtil.load(
                      new File(argOptions.getStringOption("loadVectors")),
                      GeneratorMap.class);
          } else {
              double stdev = 1 / Math.sqrt(dimension);
              System.setProperty(
                      GaussianVectorGenerator.STANDARD_DEVIATION_PROPERTY,
                      Double.toString(stdev));
              Generator<DoubleVector> generator =
                  new GaussianVectorGenerator(dimension);
              generatorMap = new GeneratorMap<DoubleVector>(generator);
          }
      }
docs: {@inheritDoc}