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require File.expand_path(File.dirname(__FILE__) + '/spec_helper.rb')
include ExampleWithGSL
describe Distribution::Weibull do
# shared_examples for "Weibull engine" do
it 'should return correct pdf' do
expect(Distribution::Weibull.pdf(2, 1, 1)).to be_within(1e-3).of(0.13533)
end
it 'should return correct cdf' do
expect(Distribution::Weibull.cdf(2, 1, 1)).to be_within(1e-3).of(0.86466)
end
it 'should return correct p-value' do
expect(Distribution::Weibull.p_value(0.86466, 1, 1)).to be_within(1e-3).of(2.0)
end
# end
end
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