public void testEapEST_and_EapSEM_D()
{
resultFlag = true;
REngine.SetEnvironmentVariables();
REngine engineObj = REngine.GetInstance();
// Loading a library from R
engineObj.Evaluate("library(catR)");
// Test for item banks with different number of items
for (int i1 = 0; i1 < numberOfItems.Length; i1++)
{
// Dichotomous Items
DataFrame DichoItems = engineObj.Evaluate("DichoItems <- genDichoMatrix(items = " + numberOfItems[i1] + ")").AsDataFrame();
engineObj.SetSymbol("DichoItems", DichoItems);
// Adapting with the existing "CAT-Items" type (Wrapper)
CATItems itemBank = new CATItems(DichoItems[0].Select(y => (double)y).ToArray(), DichoItems[1].Select(y => (double)y).ToArray(),
DichoItems[2].Select(y => (double)y).ToArray(), DichoItems[3].Select(y => (double)y).ToArray());
// test for different theta values
double[] th = CatRcs.Utils.CommonHelper.Sequence(-6, 6, length: 11);
var stopwatch = new Stopwatch();
stopwatch.Restart();
for (int i2 = 0; i2 < th.Length; i2++)
{
string temp = th[i2].ToString(nfi);
//Creation of a response pattern for theta value
NumericVector x_val = engineObj.Evaluate("x_val <- genPattern(" + th[i2].ToString(nfi) + ", DichoItems)").AsNumeric();
int[] x = x_val.Select(y => (int)y).ToArray();
// Call "EapEST" function from R
NumericVector r_eapEst = engineObj.Evaluate("result_Eap <- eapEst(DichoItems, x_val)").AsNumeric();
// Call "EapSEM" function from R
NumericVector r_eapSem = engineObj.Evaluate("result_EapSem <- eapSem(result_Eap, DichoItems, x_val)").AsNumeric();
stopwatch.Restart();
// Call "EapEST" function from CatRCS
double cs_eapEst = CatRLib.EapEST(itemBank, x, "");
// Call "EapSEM" function from CatRCS
double cs_eapSem = CatRLib.EapSEM(cs_eapEst, itemBank, x, "");
Console.WriteLine("Time: " + stopwatch.ElapsedMilliseconds);
if (r_eapEst[0] - cs_eapEst > testEpsilon ||
r_eapSem[0] - cs_eapSem > testEpsilon)
{
resultFlag = false;
}
}
}
Assert.IsTrue(resultFlag, "Test Passed!");
}
public void testEapEST_and_EapSEM_P(int NumOfItems, ModelNames.Models paramModel)
{
resultFlag = true;
REngine.SetEnvironmentVariables();
REngine engineObj = REngine.GetInstance();
// Loading a library from R
engineObj.Evaluate("library(catR)");
// Polytomous Items
CharacterVector modelName = engineObj.CreateCharacterVector(new string[] { paramModel.EnumToString() });
engineObj.SetSymbol("modelName", modelName);
DataFrame PolyItems = engineObj.Evaluate("PolyItems <- genPolyMatrix(" + NumOfItems + ", 5, model = modelName, same.nrCat = TRUE)").AsDataFrame();
engineObj.SetSymbol("PolyItems", PolyItems);
// Adapting with the existing "CAT-Items" type (Wrapper)
Console.WriteLine("*******************************************");
Console.WriteLine("Polytomous Items, Model : " + paramModel.EnumToString());
Console.WriteLine("*******************************************");
CATItems itemBank = new CATItems(PolyItems[0].Length, paramModel.EnumToString(), 5);
Tuple <CATItems.ColumnNames, int>[] cols = itemBank.GetKeys();
for (int i = 0; i < cols.Length; i++)
{
itemBank.SetItemParamter(cols[i], PolyItems[i].Select(y => (double)y).ToArray());
}
#region "Test block for Ability Values (th)"
double[] th = CatRcs.Utils.CommonHelper.Sequence(-6, 6, length: 11);
for (int j = 0; j < th.Length; j++)
{
string temp = th[j].ToString(nfi);
//Creation of a response pattern for theta value
engineObj.Evaluate("set.seed(1)");
NumericVector x_val = engineObj.Evaluate("x_val <- genPattern(" + "th = " + th[j].ToString(nfi) + ", PolyItems, " + "model = modelName)").AsNumeric();
engineObj.SetSymbol("x_val", x_val);
int[] x = x_val.Select(y => (int)y).ToArray();
// Call "EapEST" function from R
NumericVector r_eapEst = engineObj.Evaluate("result_Eap <- eapEst(PolyItems, x_val, model = modelName)").AsNumeric();
// Call "EapEST" function from CatRCS
double cs_eapEst = CatRLib.EapEST(itemBank, x, paramModel.EnumToString());
/* EapEst function, line 111 needs to be optimized for passing the Test
* Check EapSEM function too !! */
// Call "EapSEM" function from R
NumericVector r_eapSem = engineObj.Evaluate("result_EapSem <- eapSem(result_Eap, PolyItems, x_val, model = modelName)").AsNumeric();
// Call "EapSEM" function from CatRCS
double cs_eapSem = CatRLib.EapSEM(cs_eapEst, itemBank, x, paramModel.EnumToString());
if (r_eapEst[0] - cs_eapEst > testEpsilon ||
r_eapSem[0] - cs_eapSem > testEpsilon)
{
resultFlag = false;
}
}
Assert.IsTrue(resultFlag);
#endregion
}
