diff options
Diffstat (limited to 'weighted_dist.go')
| -rw-r--r-- | weighted_dist.go | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/weighted_dist.go b/weighted_dist.go index 067adaf..af0fa7d 100644 --- a/weighted_dist.go +++ b/weighted_dist.go @@ -136,6 +136,8 @@ type wDist struct { maxValue int values []int buckets []float64 + + rng *rand.Rand } // newWDist creates a weighted distribution of values ranging from min to max @@ -174,15 +176,15 @@ func (w *wDist) sample() int { func (w *wDist) reset(seed *DrbgSeed) { // Initialize the deterministic random number generator. drbg := newHashDrbg(seed) - dRng := rand.New(drbg) + w.rng = rand.New(drbg) nBuckets := (w.maxValue + 1) - w.minValue - w.values = dRng.Perm(nBuckets) + w.values = w.rng.Perm(nBuckets) w.buckets = make([]float64, nBuckets) var totalProb float64 for i, _ := range w.buckets { - prob := dRng.Float64() * (1.0 - totalProb) + prob := w.rng.Float64() * (1.0 - totalProb) w.buckets[i] = prob totalProb += prob } |