fix MovingWindow display when buffer isn't full

Author: joshday

Project.toml

@@ -1,7 +1,6 @@
-# Updated by PkgExplorer.jl at 2023-07-03 09:17:32 (UTC).
 name = "OnlineStats"
 uuid = "a15396b6-48d5-5d58-9928-6d29437db91e"
-version = "1.6.2"
+version = "1.6.3"
 
 [deps]
 AbstractTrees = "1520ce14-60c1-5f80-bbc7-55ef81b5835c"

src/stats/stats.jl

@@ -381,6 +381,7 @@ end
 MovingWindow(b::Int, T::Type) = MovingWindow(T[], b, 1, 0)
 MovingWindow(T::Type, b::Int) = MovingWindow(b, T)
 function value(o::MovingWindow)
+    o.n < o.b && return o.value
     perm = vcat(collect(o.first:o.b), collect(1:(o.first-1)))
     o.first = 1
     permute!(o.value, perm)

test/runtests.jl

@@ -351,6 +351,8 @@ end
 end
 #-----------------------------------------------------------------------# MovingWindow
 @testset "MovingWindow" begin
+    @test MovingWindow(10,Int) == MovingWindow(Int, 10)
+    string(MovingWindow)
     o = fit!(MovingWindow(10, Int), 1:12)
     for i in 1:10
         @test o[i] == (1:12)[i + 2]