CSV Analyser is a visualiser and analyser of data in CSV files. It's built using Kotlin Multiplatform and runs on Android, Linux, Windows and MacOS. It's also a demo project on how to start using Kotlin in data science projects.
At the start, tap on "File" button to import a csv file.
After a valid file is imported, a pulldown menu button "Column" appears on the upper-right corner. Tap on it to select a column, and plot of the column is shown as scattered dots.
The app includes two plot areas: and upper and a lower, tied on the X-axis. By defaults, lower plot is off. To show it, tap on button "Toggle2".
The lower plot will show differences of two columns. After selecting column 1 and column 2, tap on button "c1-c2[j]" on the right side, then the differences of the two columns are shown. The "j" is a lag index, by default is 0, you can change it by typing in a different number. The difference with the lag is computed as c1[i] - c2[i-j].
The upper and lower plots can be toggled on and off separately.
The plots can be zoomed in and out with "+" and "-" buttons. The charts can be dragged with a finger or mouse. Dragging along Y-axis is independent for the two plots. Along X-axis, it's tied.
Tap on the "?" button, a text info area will appear below the lower plot. The area prints out related info of any point selected.
Tap on the "Panel" button will hide/show the left panel.
A test data file "test.csv" is included.
The project includes an APK file for Android and a Deb file for Ubuntu flavours of Linux.
For other systems, it can be built in the following ways.
Federa etc: ./gradlew packageRpm
Windows: ./gradlew packageMsi
Mac: ./gradlew packageDmg
CSVAnalyser is provided under MIT License: https://opensource.org/licenses/MIT