Name Rascal/Libraries/analysis/statistics/Frequency/distribution

Synopsis Compute a distribution: count how many times events are mapped to which bucket.

Function

1. map[&T, int] distribution(rel[&U event, &T bucket] input)
2. map[&T <: num, int] distribution(rel[&U event, &T <: num bucket] input, &T <: num bucketSize)
3. map[&T, int] distribution(map[&U event, &T bucket] input)
4. map[&T <: num, int] distribution(map[&U event, &T <: num bucket] input, &T <: num bucketSize)

Usage import analysis::statistics::Frequency;

Examples

rascal>import analysis::statistics::Frequency;
ok
rascal>distribution({<"chicken","animal">,<"bear","animal">,<"oak","plant">,<"tulip","plant">});
map[str, int]: ("plant":2,"animal":2)
rascal>distribution({<"alice",2>,<"bob",3>,<"claire",5>},5);
map[int, int]: (0:1,5:2)

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