Ted Dunning

Results 37 issues of Ted Dunning

The idea is that you would register a schema with a `startSampler` call. This call would return an ID. Then you could ask for samples with `getSample`. An alternative could...

Hi Ted, Here's the error I get: $ ./synth -schema msg/clickstream.json id,user_id,program_id,timestamp,last_five_actions,action,device,br,la,st,os Exception in thread "main" java.lang.IllegalArgumentException: Cannot flatten type class com.fasterxml.jackson.databind.node.ObjectNode at com.mapr.synth.samplers.FlattenSampler.sample(FlattenSampler.java:33) at com.mapr.synth.samplers.FlattenSampler.sample(FlattenSampler.java:12) at com.mapr.synth.samplers.SchemaSampler.sample(SchemaSampler.java:69) at com.mapr.synth.Synth.main(Synth.java:34)...

Sometimes we would like to have transaction histories that represent plausible user actions. The simplest might be {login, do stuff, logout}\* where you can only do stuff while logged in....

#### What happens? Versions 0.3.3 and 0.3.4 appear to have a hard requirement for macOS version 12 or higher. This is not documented in the release notes and does not...

The following important projects are using older t-digest versions and should probably upgrade. An asterisk marks projects that have had a pull request or notification. 3.2: * elastic: server *...

The test `com.tdunning.math.stats.TDigestTest#testSorted` can fail with out of order centroids: ``` previous = {Centroid@1053} "Centroid{centroid=0.9999500019381296, count=5}" centroid = 0.9999500019381296 count = 5 id = 370 actualData = null centroid =...

Should include uniform and skewed distributions for all active digest types Should include merge strategy (1000 digests merged simultaneously) Should include ordered insert and ordered merge insert Should include bucket...

See issue #154 for a detailed discussion. This affects `AVLTreeDigest` in a similar way, but the fix needs to be in the tree ordering itself since there is no explicit...

Currently, we depend on Java's serialization which is not a good strategy. It would be much better to do our own and make all the different kinds of Digest use...