public override int Evaluate(IProblemAnswer answer)
{
ComplexProblemAnswer answers = answer as ComplexProblemAnswer;
if (answers != null)
{
int corrects = answers.Answers.Where(x => CorrectAnswers.Contains(x)).Count();
int incorrect = answers.Answers.Where(x => !CorrectAnswers.Contains(x)).Count();
return Math.Max(0, corrects - incorrect);
}
return 0;
}
public virtual int Evaluate(IProblemAnswer answer)
{
return 0;
}
public override int Evaluate(IProblemAnswer answer)
{
SimpleProblemAnswer sans = answer as SimpleProblemAnswer;
return sans != null ? sans.Answer == CorrectAnswer ? 1 : 0 : 0;
}
public override int Evaluate(IProblemAnswer answer)
{
HumanGradableAnswer ans = answer as HumanGradableAnswer;
return ans == null ? 0 : ans.Score;
}
