go: rename AlgoMean,Mean et al.

also add comments to methods explaining what they're supposed to do.

algo/randomSearch.go

@@ -100,7 +100,10 @@ func RandomSearchNG(maxFES, benchMinIters int, theD []int, benchFunc string, ch
 		)),
 	}
 
-	rsMeans := &stats.AlgoMean{Algo: "Random Search"}
+	rsMeans := &stats.AlgoBenchMean{
+		Algo:       "Random Search",
+		BenchMeans: make([]stats.BenchMean, 0, len(localD)),
+	}
 
 	// iterate over whatever was passed to us with theD - dimens slice.
 	for _, dimens := range localD {
@@ -112,7 +115,7 @@ func RandomSearchNG(maxFES, benchMinIters int, theD []int, benchFunc string, ch
 		}
 		funcStats := &stats.FuncStats{BenchName: benchFunc}
 		benchFuncParams := bench.FunctionParams[benchFunc]
-		dimXMean := &stats.Mean{
+		dimXMean := &stats.BenchMean{
 			Bench:       benchFunc,
 			Dimens:      dimens,
 			Iterations:  minIters,
@@ -182,7 +185,7 @@ func RandomSearchNG(maxFES, benchMinIters int, theD []int, benchFunc string, ch
 		randomSearchStats = append(randomSearchStats, *randomSearchStatDimX)
 
 		// save to AlgoMeans
-		rsMeans.Means = append(rsMeans.Means, *dimXMean)
+		rsMeans.BenchMeans = append(rsMeans.BenchMeans, *dimXMean)
 	}
 
 	sort.Sort(rsMeans)

algo/stochasticHillClimbing.go

@@ -187,7 +187,10 @@ func HillClimb(maxFES, benchMinIters int, theD []int, benchFunc string, ch chan
 	localD = theD
 	minIters = benchMinIters
 
-	shcMeans := &stats.AlgoMean{Algo: "Stochastic Hill Climbing"}
+	shcMeans := &stats.AlgoBenchMean{
+		Algo:       "Stochastic Hill Climbing",
+		BenchMeans: make([]stats.BenchMean, 0, len(localD)),
+	}
 
 	for _, dimens := range localD {
 		stochasticHCStatDimX := &stats.Stats{
@@ -201,7 +204,7 @@ func HillClimb(maxFES, benchMinIters int, theD []int, benchFunc string, ch chan
 		}
 		funcStats := &stats.FuncStats{BenchName: benchFunc}
 		benchFuncParams := bench.FunctionParams[benchFunc]
-		dimXMean := &stats.Mean{
+		dimXMean := &stats.BenchMean{
 			Bench:       benchFunc,
 			Dimens:      dimens,
 			Iterations:  minIters,
@@ -299,7 +302,7 @@ func HillClimb(maxFES, benchMinIters int, theD []int, benchFunc string, ch chan
 		stochasticHCStats = append(stochasticHCStats, *stochasticHCStatDimX)
 
 		// save to AlgoMeans.
-		shcMeans.Means = append(shcMeans.Means, *dimXMean)
+		shcMeans.BenchMeans = append(shcMeans.BenchMeans, *dimXMean)
 	}
 
 	sort.Sort(shcMeans)

stats/stats.go

@@ -25,9 +25,9 @@ type FuncStats struct {
 	MeanVals []float64
 }
 
-// Mean structure holds mean vals and metadata of a specified
-// bench-algo-settings combination.
-type Mean struct {
+// BenchMean structure holds mean vals and metadata of a bench-params
+// combination.
+type BenchMean struct {
 	Bench  string
 	Dimens int
 
@@ -40,15 +40,15 @@ type Mean struct {
 	MeanVals []float64
 }
 
-// AlgoMean holds Mean structs of different benchmarks but the same algorithm.
-type AlgoMean struct {
+// AlgoBenchMean holds BenchMean structs of different benchmarks but the same algorithm.
+type AlgoBenchMean struct {
 	Algo       string
-	Means []Mean
+	BenchMeans []BenchMean
 }
 
 // MeanStats aggregates AlgoMean structs of different algos.
 type MeanStats struct {
-	AlgoMeans []AlgoMean
+	AlgoMeans []AlgoBenchMean
 }
 
 type Stats struct {
@@ -59,30 +59,34 @@ type Stats struct {
 	Generations    int
 }
 
-// the following three methods implement the sort.Interface.
-func (a AlgoMean) Len() int {
-	return len(a.Means)
+// Len implements the sort.Interface.
+func (a AlgoBenchMean) Len() int {
+	return len(a.BenchMeans)
 }
 
-func (a AlgoMean) Less(i, j int) bool {
-	return a.Means[i].Bench < a.Means[j].Bench
+// Less implements the sort.Interface.
+func (a AlgoBenchMean) Less(i, j int) bool {
+	return a.BenchMeans[i].Bench < a.BenchMeans[j].Bench
 }
 
-func (a AlgoMean) Swap(i, j int) {
-	a.Means[i], a.Means[j] = a.Means[j], a.Means[i]
+// Swap implements the sort.Interface.
+func (a AlgoBenchMean) Swap(i, j int) {
+	a.BenchMeans[i], a.BenchMeans[j] = a.BenchMeans[j], a.BenchMeans[i]
 }
 
-// the following three methods also implement the sort.Interface.
+// Len implements the sort.Interface.
 func (m MeanStats) Len() int {
 	return len(m.AlgoMeans)
 }
 
-// this in fact sorts in reverse (fits with our use case atm).
+// Less implements the sort.Interface.
+// note: this in fact sorts in reverse (fits with our use case atm).
 func (m MeanStats) Less(i, j int) bool {
 	// return m.AlgoMeans[i].Algo < m.AlgoMeans[j].Algo
 	return m.AlgoMeans[i].Algo > m.AlgoMeans[j].Algo
 }
 
+// Swap implements the sort.Interface.
 func (m MeanStats) Swap(i, j int) {
 	m.AlgoMeans[i], m.AlgoMeans[j] = m.AlgoMeans[j], m.AlgoMeans[i]
 }