GUI User Guide

NLSQ provides a native desktop GUI built with PySide6 (Qt) and pyqtgraph for GPU-accelerated scientific plotting. The GUI allows you to fit data without writing code.

The complete GUI documentation lives in the structured tutorial:

• 6. Desktop GUI Application
  • 6.1. Launching the GUI
  • 6.2. Workflow Pages
  • 6.3. Fitting Presets
  • 6.4. Chapter Overview
  • 6.5. Quick Start
  • 6.6. Features
  • 6.7. Screenshot Overview
  • 6.8. Keyboard Shortcuts

Quick Start

Launch the GUI from the command line:

nlsq-gui

Or from Python:

from nlsq.gui_qt import run_desktop

run_desktop()

When to Use the GUI

The GUI is ideal for:

• Exploratory analysis: Quickly try different models

• Interactive fitting: Tune parameters visually

• Teaching and demos: Show curve fitting concepts

• One-off fits: No code setup required

For batch processing, scripting, or production pipelines, use the Python API instead (see Tutorials).

See Also

• Desktop GUI Application - Complete GUI guide

• Your First Curve Fit - Python API tutorial

• Reference - API reference