text: var vector = require('./lib/vector');
  var factor = require('./lib/factor');
  var matrix = require('./lib/matrix');
  var t = require('./lib/t');
  var misc = require('./lib/misc');
  var distributions = require('./lib/distributions');
  var regression = require('./lib/regression');
  var correlation = require('./lib/correlation');
  var numeric = require('./lib/numeric');
  var anova = require('./lib/anova');
  var normality = require('./lib/normality');
  var confidence = require('./lib/confidence');
  var power = require('./lib/power');
  var nonparametric = require('./lib/nonparametric');
  
  module.exports.Vector = vector.Vector;
  module.exports.Factor = factor.Factor;
  module.exports.Matrix = factor.Matrix;
  module.exports.Sequence = vector.Sequence;
  module.exports.StudentT = t.StudentT;
  module.exports.Misc = misc.Misc;
  module.exports.Numeric = numeric.Numeric;
  module.exports.Normal = distributions.Normal;
  module.exports.StandardNormal = distributions.StandardNormal;
  module.exports.T = distributions.T;
  module.exports.F = distributions.F;
  module.exports.Kolmogorov = distributions.Kolmogorov;
  module.exports.Regression = regression.Regression;
  module.exports.Correlation = correlation.Correlation;
  module.exports.Anova = anova.Anova;
  module.exports.Normality = normality.Normality;
  module.exports.Confidence = confidence.Confidence;
  module.exports.Power = power.Power;
  module.exports.Nonparametric = nonparametric.Nonparametric;
  