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Contents
require(File.expand_path(File.dirname(__FILE__)+'/helpers_tests.rb'))
class StatsampleCrosstabTestCase < MiniTest::Unit::TestCase
def initialize(*args)
@v1=%w{black blonde black black red black brown black blonde black red black blonde}.to_vector
@v2=%w{woman man man woman man man man woman man woman woman man man}.to_vector
@ct=Statsample::Crosstab.new(@v1,@v2)
super
end
def test_crosstab_errors
e1=%w{black blonde black black red black brown black blonde black}
assert_raise ArgumentError do
Statsample::Crosstab.new(e1,@v2)
end
e2=%w{black blonde black black red black brown black blonde black black}.to_vector
assert_raise ArgumentError do
Statsample::Crosstab.new(e2,@v2)
end
assert_nothing_raised do
Statsample::Crosstab.new(@v1,@v2)
end
end
def test_crosstab_basic
assert_equal(%w{black blonde brown red}, @ct.rows_names)
assert_equal(%w{man woman}, @ct.cols_names)
assert_equal({'black'=>7,'blonde'=>3,'red'=>2,'brown'=>1}, @ct.rows_total)
assert_equal({'man'=>8,'woman'=>5}, @ct.cols_total)
end
def test_crosstab_frequencies
fq=@ct.frequencies
assert_equal(8,fq.size)
sum=fq.inject(0) {|s,x| s+x[1]}
assert_equal(13,sum)
fr=@ct.frequencies_by_row
assert_equal(4,fr.size)
assert_equal(%w{black blonde brown red},fr.keys.sort)
fc=@ct.frequencies_by_col
assert_equal(2,fc.size)
assert_equal(%w{man woman},fc.keys.sort)
assert_equal(Matrix.rows([[3,4],[3,0],[1,0],[1,1]]),@ct.to_matrix)
end
def test_summary
@ct.percentage_row=true
@ct.percentage_column=true
@ct.percentage_total=true
assert(@ct.summary.size>0)
end
def test_expected
v1=%w{1 1 1 1 1 0 0 0 0 0}.to_vector
v2=%w{0 0 0 0 0 1 1 1 1 1}.to_vector
ct=Statsample::Crosstab.new(v1,v2)
assert_equal(Matrix[[2.5,2.5],[2.5,2.5]],ct.matrix_expected)
end
end
Version data entries
7 entries across 7 versions & 1 rubygems