Sampler for Categorical Rational Distributions

General Usage
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1

With the new Distributions update (this did not appear to happen several versions ago), this works

rand(Categorical([0.5, 0.5]))

and this works

Categorical([1//2, 1//2])

but this causes an error (“ArgumentError: Sampler for this object is not defined”)

rand(Categorical([1//2, 1//2]))

What am I doing wrong here?

2

What versions are you using? These versions seem to work:

julia> rand(Categorical([1//2,1//2]))
2

(jl_waVJwl) pkg> st
      Status `/tmp/jl_waVJwl/Project.toml`
  [31c24e10] Distributions v0.24.12

julia> versioninfo()
Julia Version 1.6.0-rc1
Commit a58bdd9010 (2021-02-06 15:49 UTC)
Platform Info:
  OS: Linux (x86_64-pc-linux-gnu)
  CPU: Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-11.0.1 (ORCJIT, skylake)
Environment:
  JULIA_REVISE_INCLUDE = 1
2 Likes
3

I am on version 0.21.12 of Distributions, which is why it’s probably not working.
However Pkg.update(“Distributions”) is leading to no changes. Is this due to me being on 1.6 beta?

4

It actually was due to a seperate package (ClassImbalance) that Distributions of higher versions required be uninstalled. It told me this when I tried to get the Github version. It is working as expected now

1 Like