void MyFunctions::BuildGradeNormMap() {
// This function build the gradeNormMap if it isn't already filled
if (gradeNormMap.size() > 0) return; // Already filled
// This is build from the Students root file. Maybe this should be from a course file instead?
TFile* f = new TFile("Students.root");
TTree* studentTree = (TTree*)f->Get("Students");
Student* student = 0;
studentTree->SetBranchAddress("student", &student);
Long64_t nentries = studentTree->GetEntriesFast();
for (Long64_t jentry = 0; jentry < nentries; jentry++) {
studentTree->GetEntry(jentry);
//Loop over all terms for this student and accumulate grade distribution info
for (auto const& grade : student->Grades()) {
// Only look at Fall and Spring Terms
int term = grade.term;
if (!regularSemester(term)) continue;
if (!ValidGrade(grade.grade)) continue;
auto thisKey = std::make_pair(grade.course, 0);
auto thisKeyAll = std::make_pair("AllCourses", 0);
MyFunctions::gradeNormMap[thisKey].AddGrade(grade.grade); // Will automatically create entry in map if it doesn't exist
MyFunctions::gradeNormMap[thisKeyAll].AddGrade(grade.grade);
auto termKey = std::make_pair(grade.course, term);
auto termKeyAll = std::make_pair("AllCourses", term);
MyFunctions::gradeNormMap[termKey].AddGrade(grade.grade);
MyFunctions::gradeNormMap[termKeyAll].AddGrade(grade.grade);
}
}
f->Close();
}
