API Reference# Signal processing pyOMA.core.PreProcessingTools Importing external measurement data System Identification / Modal Analysis BRSSICovRef PogerSSICovRef SSIData SSIDataCV SSIDataMC VarSSIRef vectorize() ERA PLSCF PRCE ModalBase Post-processing pyOMA.core.PlotMSH pyOMA.core.PostProcessingTools pyOMA.core.StabilDiagram GUI Development Two independent GUI stacks The .ui → build_ui.py → generated/ pipeline The hand-written module pattern Shared helpers — HelpersGUI.py The start_*_gui() idiom The per-identification-method widget pattern Adding a new GUI window: step by step Headless testing convention GUI Reference