#incoming data looks like
#FILENAME,I,LEARNER,SEARCH,HORIZON,RANKER,EVAL,ESTIMATE,ACTUAL,MRE,COST_DRIVERS

BEGIN {
	FS = ",";				# Initialize the field separator.
	OFS = ",";				# Initialize the output field separator.
	Pred = 30;				# Initialize the range for Pred.	
}

{
	Mre = $10;
	SumMre += Mre;
	SumMreSq += Mre^2;
	if (Mre < Pred) PredN++
	
	
	Subset=$11
	for(I=1; I<=15; I++) {
	target="-"I"-";
	if (index(Subset, target)!=0) {
		#Count[I]++;
		CostDriverSum++;
		}
	}
	
}

END {
		Mmre = SumMre/NR;
		Pred30 = 100*(PredN/NR);
		SdMre = sd(SumMreSq,SumMre,NR);	
		print Mmre, Pred30, SdMre, CostDriverSum/NR;
}

function sd(sumSq,sumX,n) {
	return sqrt((sumSq-((sumX*sumX) / n)) / (n-1))
}