Contents

$:.unshift File.expand_path("../../lib", __FILE__)

require 'benchmark'
require 'daru'

df = Daru::DataFrame.new({
  a: 100000.times.map { rand },
  b: 100000.times.map { rand },
  c: 100000.times.map { rand }
})

index = Daru::Index.new((0...100000).to_a.shuffle)

Benchmark.bm do |x|
  x.report("Assign new vector as Array") do
    df[:d] = 100000.times.map { rand }
  end

  x.report("Reassign same vector as Array") do
    df[:a] = 100000.times.map { rand }
  end

  x.report("Assign new Vector as Daru::Vector") do
    df[:e] = Daru::Vector.new(100000.times.map { rand })
  end

  x.report("Reassign same Vector as Daru::Vector") do
    df[:b] = Daru::Vector.new(100000.times.map { rand })
  end

  x.report("Reassgin differently indexed Daru::Vector") do
    df[:b] = Daru::Vector.new(100000.times.map { rand }, index: index)
  end
end

#                           ===== Benchmarks =====
#                                             user     system      total        real
# Assign new vector as Array                0.370000   0.000000   0.370000 (0.364515)
# Reassign same vector as Array             0.470000   0.000000   0.470000 (0.471408)
# Assign new Vector as Daru::Vector         0.940000   0.000000   0.940000 (0.947879)
# Reassign same Vector as Daru::Vector      0.760000   0.020000   0.780000 (0.769969)
# Reassgin differently indexed Daru::Vector <Too embarassingly slow.>

Version data entries

12 entries across 12 versions & 1 rubygems

Version	Path
daru-0.3	benchmarks/vector_assign.rb
daru-0.2.2	benchmarks/vector_assign.rb
daru-0.2.1	benchmarks/vector_assign.rb
daru-0.2.0	benchmarks/vector_assign.rb
daru-0.1.6	benchmarks/vector_assign.rb
daru-0.1.5	benchmarks/vector_assign.rb
daru-0.1.4.1	benchmarks/vector_assign.rb
daru-0.1.4	benchmarks/vector_assign.rb
daru-0.1.3.1	benchmarks/vector_assign.rb
daru-0.1.3	benchmarks/vector_assign.rb
daru-0.1.2	benchmarks/vector_assign.rb
daru-0.1.1	benchmarks/vector_assign.rb