CODEWITHSUNDEEP
rfatal-errordbscan
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Reputation: 41

R session aborted when running dbscan

I am trying to cluster a dataset which has 25 columns - 1 column with an id and 24 columns telling how many times an application with this id has been clicked for each hour of the day. When I try to run dbscan from the package dbscan the R session is aborted with a fatal error.

I tried to use dbscan on the same data, where it was group by day instead of hour and it works fine. Is there a limit on how many dimensions dbscan can handle?

Upvotes: 3

Views: 755

Answers (1)

Michael Hahsler
Michael Hahsler

Reputation: 3075

This was indeed an early bug which has been resolved in the current version. Here is some random data with 1000 points and 100 dimensions.

> library(dbscan)
> dat <- matrix(runif(100*1000), ncol=100)
> system.time(db <- dbscan(dat, eps = 3.2))
   user  system elapsed 
  0.272   0.000   0.264 
> db
  DBSCAN clustering for 1000 objects.
  Parameters: eps = 3.2, minPts = 5
  The clustering contains 2 cluster(s).
  Available fields: cluster, eps, minPts

Upvotes: 0

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