The sampling test application will compute histograms of the sampling output from distribution samplers.
Build the application using:
mvn package -P examples-sampling
The application contains help information describing the usage. Obtain the help by running the application with the -h flag to obtain the available commands and to obtain information for the commands:
java -jar target/examples-sampling.jar -h
java -jar target/examples-sampling.jar density -h
java -jar target/examples-sampling.jar visual -h
The density command computes a histogram of the distribution and uses this to create an approximation of the probability denssity function for the distribution. The data is recorded to a file named using the sampler. For example to output a histogram of a ZigguratGaussianSampler to the file pdf.gauss.ziggurat.txt use:
java -jar target/examples-sampling.jar density -s ZigguratGaussianSampler
The visual command computes samples from Gaussian random samplers and outputs the samples that fall within a very small range. The lower limit of the range is specified and the number of IEEE 754 double values above the lower limit is used to specify the sampled range. For example to sample the 1000 double values above 0.1:
java -jar target/examples-sampling.jar visual -b 1000 -s 10