Github user ChengXiangLi commented on a diff in the pull request:
https://github.com/apache/flink/pull/1110#discussion_r39003481
--- Diff:
flink-java/src/main/java/org/apache/flink/api/java/sampling/PoissonSampler.java
---
@@ -93,29 +98,59 @@ public boolean hasNext() {
}
}
}
-
- private void moveToNextElement() {
- while (input.hasNext()) {
+
+ public int poisson_ge1(double p){
+ // sample 'k' from Poisson(p), conditioned to k
>= 1
+ double q = Math.pow(Math.E, -p);
+ // simulate a poisson trial such that k >= 1
+ double t = q + (1 - q)*random.nextDouble();
--- End diff --
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