public ActionResult Contrast(FormCollection form)
{
ViewBag.SSA = form.GetValues("ssa").Select(x => double.Parse(x)).FirstOrDefault();
ViewBag.SSE = form.GetValues("sse").Select(x => double.Parse(x)).FirstOrDefault();
ViewBag.Ftest = form.GetValues("ftest").Select(x => double.Parse(x)).FirstOrDefault();
ViewBag.Sc = form.GetValues("Sc").Select(x => double.Parse(x)).FirstOrDefault();
ViewBag.n = form.GetValues("n").Select(x => int.Parse(x)).FirstOrDefault();
ViewBag.k = form.GetValues("k").Select(x => int.Parse(x)).FirstOrDefault();
ViewBag.Alt1 = form.GetValues("alt1").Select(x => int.Parse(x)).FirstOrDefault();
ViewBag.Alt2 = form.GetValues("alt2").Select(x => int.Parse(x)).FirstOrDefault();
ViewBag.Certainty = form.GetValues("certainty").Select(x => double.Parse(x)).FirstOrDefault();
string alts = form.GetValues("alts").FirstOrDefault();
ViewBag.alts = alts.Split(',').Select(x => double.Parse(x)).ToArray();
double c = ViewBag.alts[ViewBag.Alt1 - 1] - ViewBag.alts[ViewBag.Alt2 - 1];
var tdist = new TDistribution(ViewBag.k * (ViewBag.n - 1));
double alpha = 1 - ViewBag.Certainty;
double div = tdist.InverseCDF(1 - alpha / 2) * ViewBag.Sc;
ViewBag.LowLimit = c - div;
ViewBag.HighLimit = c + div;
return(View("Result"));
}