Java中的随机模拟___下载.zip

# SSJ *Stochastic Simulation in Java* SSJ is a Java library for stochastic simulation, developed under the supervision of [Pierre L'Ecuyer](http://www-labs.iro.umontreal.ca/~lecuyer/) in the [Simulation and Optimization Laboratory](http://simul.iro.umontreal.ca/), [Department of Computer Science and Operations Research](http://en.diro.umontreal.ca) at Université de Montréal. It provides facilities for: - random number and random variate generation - stochastic process simulation - discrete-event simulation - computations with several types of probability distributions - randomized quasi-Monte Carlo methods - collecting and reporting statistics from simulations - goodness-of-fit tests - and much more. Starting from version 3.1.0, SSJ is released under the [Apache 2.0 License](http://www.apache.org/licenses/LICENSE-2.0), and the package names have changed from `umontreal.iro.lecuyer.*` to `umontreal.ssj.*`. ## Documentation and tutorial The [SSJ User's Guide](http://umontreal-simul.github.io/ssj/docs/master) includes: - the [API documentation](http://umontreal-simul.github.io/ssj/docs/master/namespaces.html); and - [a tutorial with documented examples](http://umontreal-simul.github.io/ssj/docs/master/examples.html). ## Installation You can install SSJ either by [adding it as a dependency](#using-maven) for your Maven- or Gradle-based project, by downloading a [binary release](#binary-releases) or by [compiling it from scratch](#compiling-the-source-code). SSJ is compatible with Java SE8 and later versions of Java. It requires the Java Development Kit (JDK), whose latest version is available at [Oracle](http://www.oracle.com/technetwork/java/javase/downloads/index.html) with installation instructions. It must be installed *before* installing SSJ. It is also useful to install an integrated development environments (IDE) such as [Eclipse](http://www.eclipse.org/), [NetBeans](http://netbeans.org/), [IntelliJ IDEA](http://www.jetbrains.com/idea/), for example, to write, compile, and run your Java code. ### Using Maven **(Simplest approach)** SSJ packages are hosted [on Bintray](https://bintray.com/umontreal-simul/maven/ssj/_latestVersion) and on [Maven Central](https://repo1.maven.org/maven2/ca/umontreal/iro/simul/ssj/). If your Java project uses [Maven](http://maven.apache.org/) or [Gradle](http://gradle.org/), **all you need to do is add `ca.umontreal.iro.simul:ssj:+` to the Maven dependencies of your project**, then you can start working on your SSJ-based project right-away. ##### IDE integration Most IDEs support Maven. In Eclipse, NetBeans, or IntelliJ IDEA, for example, it suffices to create your project as a *Maven project* instead of a Java project. After creating your project, add SSJ to its Maven dependencies (refer to your IDE documentation), with the following parameters: - **Group Id**: `ca.umontreal.iro.simul`; - **Artifact Id**: `ssj`; - **Version**: any [valid release number for SSJ](http://github.com/umontreal-simul/ssj/releases), e.g., `3.3.1`, and you are ready to go! ### Binary releases For those who want to download the binaries and install them manually, we provide below some general instructions for configuring a project to use SSJ. Less experienced users can find [more detailed instructions on the SSJ page](http://simul.iro.umontreal.ca/ssj/indexe.html). #### Download a binary archive Pre-compiled binaries are available as archives on the [releases page](http://github.com/umontreal-simul/ssj/releases). They include: - the main SSJ [JAR file](http://en.wikipedia.org/wiki/JAR_%28file_format%29) (under `ssj/lib`); - JAR files for the Java libraries used by SSJ (the dependencies) (under `ssj/lib`); - dependencies and the [JNI](http://en.wikipedia.org/wiki/Java_Native_Interface) shared libraries (under the `ssj/lib` directory); - the user's guide (under `ssj/doc/html`); and - example source files (under `ssj/doc/examples`). You can download the latest archive and extract the files in a location of your choice. #### Set the Java class path You add to the Java class path every JAR file found under the `ssj/lib` directory of the binary archive. ##### On the command line If you use Java from the command line, add the full path of every JAR file under `ssj/lib` to the `CLASSPATH` environment variable, separated with `:` under Linux or MacOS, or by `;` under Windows. Means of doing this depends on the system you are using. For example, under Linux with a Bash-compatible shell, one could use something like: ```sh for f in /full/path/to/ssj/lib/*.jar; do CLASSPATH=$f:$CLASSPATH done export CLASSPATH ``` ##### In Eclipse In Eclipse, under *Window ‣ Preferences ‣ Java ‣ Build Path ‣ User Libraries*, click *New…*. Set the name to `SSJ` and click *OK*. Click *Add External JARs…* navigate to the `ssj/lib` folder of the extracted binary archive, select all JAR files, and click *OK*. You can now add the SSJ library you have created from any project, by right-clicking on your project name in the *Package Explorer*, by selecting *Build Path ‣ Add Libraries… ‣ User Library* under your project tree and by choosing SSJ. ##### In NetBeans In NetBeans, under *Tools ‣ Libraries*, press *New Library…*. Set the name to `SSJ` and click *OK*. Click *Add JAR/Folder…*, navigate to the `ssj/lib` folder of the extracted binary archive, select all JAR files, and click *Add JAR/Folder*. You can now add the SSJ library you have created from any project, by right-clicking on *Libraries* under your project tree in the *Projects* tab and by choosing SSJ. ## Compiling the source code **You do not need to compile the source code to use SSJ if you have already installed it [using Maven](#using-maven) or a [binary release](#binary-releases).** But in case you want to change the source for some reason, here is how you can recompile. The SSJ library uses [Gradle](http://gradle.org/) as its build system. You do not need to download it, since the Gradle wrapper executable program is provided with the source code as the `gradlew` file for Linux and MacOS platforms, and as `gradlew.bat` for Windows platforms. The `build.gradle` and `gradle.properties` files at the root of the source tree contain the configuration for Gradle. In the instructions below, **Windows users** should replace instances of `./gradlew` with `gradlew.bat`. SSJ and the current Gradle version work with Java SE (or JDK) version 8 or later. ### Using Gradle The general syntax for Gradle is `./gradlew <task>` where `<task>` is the name of a Gradle task (run `./gradlew tasks` to obtain a list of available tasks). On the command line, from the root of the source tree, type: - `./gradlew check` to build and test the library; - `./gradlew examples` (optionally) to run additional examples; - `./gradlew distZip` or `./gradlew distTar` to create an binary archive of the SSJ library, including the SSJ JAR file and its dependencies; - `./gradlew --gui` to launch the Gradle graphical user interface and choose from more options. All files generated during the build process are placed under the `build` subdirectory. The generated binary archives can be found under `build/distributions`. ### Building the documentation **(Optional)** The SSJ library uses [Doxygen](http://www.stack.nl/~dimitri/doxygen/) as its documentation system. If Doxygen is available on your system, you can tell Gradle to build the documentation by adding the following line in `gradle.properties`: buildDocs Then, run Gradle [as explained above](#using-gradle). You may want (or need) to change some Doxygen environments variables in the file Doxyfile. ### JNI classes **(Optional)** The classes [UnuranContinuous](http://umontreal-simul.github.io/ssj/docs/master/html/classumontreal_1_1ssj_1_1randvar_1_1UnuranContinuous.html), [UnuranDiscreteInt](http://umontreal-simul.github.io/ssj/docs/master/html/classumontreal_1_1ssj_1_1randvar_1_1UnuranDis