gaussian_spec.rb in fathom-0.3.6

- old
+ new

@@ -16,11 +16,11 @@
     Gaussian.rng.should_receive(:gaussian).and_return(0.5)
     Gaussian.rand(1)
   end
   
   it "should be able to generate an inverse CDF" do
-    Gaussian.inverse_cdf(@opts).should be_close(-0.16448, 0.00001)
+    Gaussian.inverse_cdf(@opts).should be_within(0.00001).of(-0.16448)
   end
   
   it "should require mean as an option for an inverse CDF" do
     @opts.delete(:mean)
     lambda{Gaussian.inverse_cdf(@opts)}.should raise_error
@@ -31,23 +31,23 @@
     lambda{Gaussian.inverse_cdf(@opts)}.should raise_error
   end
   
   it "should take std as an alias for sd when creating an inverse CDF" do
     @opts.delete(:sd)
-    Gaussian.inverse_cdf(@opts.merge(:std => 0.1)).should be_close(-0.16448, 0.00001)
+    Gaussian.inverse_cdf(@opts.merge(:std => 0.1)).should be_within(0.00001).of(-0.16448)
   end
 
   it "should take standard_deviation as an alias for sd when creating an inverse CDF" do
     @opts.delete(:sd)
-    Gaussian.inverse_cdf(@opts.merge(:standard_deviation => 0.1)).should be_close(-0.16448, 0.00001)
+    Gaussian.inverse_cdf(@opts.merge(:standard_deviation => 0.1)).should be_within(0.00001).of(-0.16448)
   end
   
   it "should be able to set upper to true and get Q instead of P" do
-    Gaussian.inverse_cdf(@opts.merge(:upper =>true)).should be_close(0.16448, 0.00001)
+    Gaussian.inverse_cdf(@opts.merge(:upper =>true)).should be_within(0.00001).of(0.16448)
   end
   
   it "should be able to take a different confidence interval" do
-    Gaussian.inverse_cdf(@opts.merge(:confidence_interval => 0.1)).should be_close(-0.12815, 0.00001)
+    Gaussian.inverse_cdf(@opts.merge(:confidence_interval => 0.1)).should be_within(0.00001).of(-0.12815)
   end
 
   it "should have a lower_bound alias for inverse_cdf" do
     Gaussian.lower_bound(@opts).should eql(Gaussian.inverse_cdf(@opts))
   end