Sampling

Author: nalimilan

docs/make.jl

@@ -15,7 +15,8 @@ makedocs(
              "robust.md",
              "ranking.md",
              "empirical.md",
-             "transformations.md"]
+             "transformations.md",
+             "sampling.md"]
 )
 
 deploydocs(

docs/src/index.md

@@ -11,6 +11,6 @@ corrections where necessary.
 
 ```@contents
 Pages = ["weights.md", "scalarstats.md", "cov.md", "robust.md", "ranking.jl",
-         "empirical.md", "transformations.md"]
+         "empirical.md", "transformations.md", "sampling.md"]
 Depth = 2
 ```

perf/sampling.jl

@@ -2,11 +2,11 @@
 
 # require the BenchmarkLite package
 using BenchmarkLite
-using StatsBase
+using Statistics
 
-import StatsBase: direct_sample!, xmultinom_sample!
-import StatsBase: knuths_sample!, fisher_yates_sample!, self_avoid_sample!
-import StatsBase: seqsample_a!, seqsample_c!, seqsample_d!
+import Statistics: direct_sample!, xmultinom_sample!
+import Statistics: knuths_sample!, fisher_yates_sample!, self_avoid_sample!
+import Statistics: seqsample_a!, seqsample_c!, seqsample_d!
 
 ### generic sampling benchmarking
 

perf/wsampling.jl

@@ -1,9 +1,9 @@
 # Benchmark on weighted sampling
 
 using BenchmarkLite
-using StatsBase
+using Statistics
 
-import StatsBase: direct_sample!, alias_sample!, xmultinom_sample!
+import Statistics: direct_sample!, alias_sample!, xmultinom_sample!
 
 ### procedure definition
 
@@ -28,10 +28,10 @@ mutable struct Direct_S <: WithRep end
 tsample!(s::Direct_S, wv, x) = sort!(direct_sample!(1:length(wv), wv, x))
 
 mutable struct Sample_WRep <: WithRep end
-tsample!(s::Sample_WRep, wv, x) = sample!(1:length(wv), wv, x; ordered=false)
+tsample!(s::Sample_WRep, wv, x) = sample!(1:length(wv), x; weights=wv, ordered=false)
 
 mutable struct Sample_WRep_Ord <: WithRep end
-tsample!(s::Sample_WRep_Ord, wv, x) = sample!(1:length(wv), wv, x; ordered=true)
+tsample!(s::Sample_WRep_Ord, wv, x) = sample!(1:length(wv), x; weights=wv, ordered=true)
 
 
 # config is in the form of (n, k)

src/Statistics.jl

@@ -14,6 +14,9 @@ using Base: has_offset_axes, require_one_based_indexing
 
 using Printf: @printf
 
+import Random
+using Random: Sampler, GLOBAL_RNG, AbstractRNG, randexp
+
 export std, stdm, var, varm, mean!, mean,
     median!, median, middle, quantile!, quantile,
     # moments.jl
@@ -46,7 +49,9 @@ export std, stdm, var, varm, mean!, mean,
     unnormalize, unnormalize!,
     AbstractNormalization, MinMaxNormalization, ZScoreNormalization,
     # reliability.jl
-    cronbachalpha, CronbachAlpha
+    cronbachalpha, CronbachAlpha,
+    # sampling.jl
+    sample, sample!, samplepair
 
 include("common.jl")
 include("weights.jl")
@@ -63,6 +68,7 @@ include("empirical.jl")
 include("hist.jl")
 include("transformations.jl")
 include("reliability.jl")
+include("sampling.jl")
 
 ##### mean #####