ESEJ engine (Eta Statistical Engine Java ver.)

ESEJ project, or I originally called it Eta system Java edition, was a statistical multipurpose toolkit for Java-native builds and projects. It was designed to extend R language(not included in the current version) and other JVM statistical packages like Apache Commons Statistics, Smile, and JFreeChart data visualization package for building GUIs (via JavaFX or Java Swing) and Web/Cloud applications (using Spring frameworks like Spring boot and Spring cloud; though currently not included in alpha version) and direct usages, as well as providing options for either accessing R (multi-language; via Rserve) or using native built-in functions (develop your project entirely in Java).

Included UIs

In the current version of the ESEJ engine:

• FXSystem - The main GUI of ESEJ engine enabling users to interact with the engine. Enable users to:
  • Plot univariate distributions(in the main page of the GUI) - it can plot various distributions and export the plot as .png file or extract the data to Excel file;
  • Compare (Two/Multi; up to 10) multiple distributions to visualize the differences between each data given (assume that they are distributed in a specific pattern); In the Two-comparator page, you can enable ECDF plots mode to determine goodness-of-fit of a sample given a specified distribution. Similar to Main page, the Two-comparator page can also export the plot as .png file but cannot extract the data.
  • Plot multivariate distributions(2D/3D) - enables users to plot multivariate distributions(only bivariate; current version only allow users to plot bivariate Normal) to contour heat Canvas(2D) or in a meshView(3D). Only 2D page allow user to export the canvas as .png file.
  • Data Analyzer / Power Analyzer (currently disabled) / Regression visualizer - Enables users to perform data visualization, power analysis, and regression visualization in the FXSystem. These pages are one of the advanced tool this application provides. All pages (except power analysis page because it won't generate any charts) can export the generated chart as .png file.
• Note: In the current version of the application, you can't rename or restyle the generated charts. I'll add these capabilities if you guys needed it.

If you want to know how to use them, see their documentations for details.

Configuration using build tools

This project was built using Apache Maven for installing and managing required dependecies, and running FXSystem GUI. Unfortunately, I haven't packaging the FXSystem using Maven yet, so you cannot install it via Maven (though you can configure it as a local module) or Gradle(Kotlin) yet. I'll add them later in beta version releasing.
But to assemble it using maven, here's how:

- First, install the .zip file from the releases and unzip it
- Then, in your IDE (IntelliJ IDEA recommanded), add it to your project classpath, and in your project's root pom.xml, add their dependecies. In the current settings, you have to import fx-system package from com.eta to access the gui pages. Note that you have to configure the pom.xml files from "Maven Settings" package properly before importing fx-system.
- Set up your entry point. The entry point of the app was:

import FXSystem.ControllersAndStructures.Controllers.Initialize.FXSinglePlotterController;
import javafx.application.Application;
import javafx.stage.Stage;

// Example
public class TestApp extends Application {
    @Override
    public void start(Stage stage) {
        FXSinglePlotterController controller = new FXSinglePlotterController();
        stage = controller.buildStage();
        stage.show();
    }
}

And remember to configure the main class as the entry point class name(in your project's root pom.xml). Then run

mvn javafx:run

In IntelliJ IDEA, open "Maven" and then "Execute Maven Goal", then enter the above command. Remember inside your project's root pom.xml, it has something like:

<build>
    <plugins>
        <plugin>
            <groupId>org.openjfx</groupId>
            <artifactId>javafx-maven-plugin</artifactId>
            <version>0.0.8</version>
            <configuration>
                <!-- Remember replace it with your actual file name and locations !-->
                <mainClass>Test.TestApp</mainClass>
            </configuration>
        </plugin>
    </plugins>
</build>

Note: it might contain other unavailable feature such as web backends. Do not use it until new package updates.

Found bugs or want some new features?

You can freely convey it via create new issues at its GitHub repository. Since it was still in alpha, so maybe there's incompleteness / bugs that it may affect your experiences. If you did find some bugs or want to add something, feel free to create your issues!