v0.14.2

• Fixed some failing tests due to how error handling changed.
• Fixed some formatting on the documentation website
• Added ability to create geometry from an excel spreadsheet
• Added significant documentation on complex modes
• Added octave averaging to the PowerSpectralDensityArray class
• Fixed a bug in the local rational modelling FRF method
• Fixed a bug in the geometry plotter due to changes in pyqt and PyQt5
• Added ability to create more general sine sweeps
• Fixed issue where node colors were not displayed correctly when plotting geometry.
• Fixed issues with unescaped characters in docstrings and code
• Used Black to fix some of the code quality issues.
• Went back to PyQt5 from PyQt6
• Fixed bug in UFF reader for complex modes in dataset 55
• Added ability to use different signals as references for a CPSD
• Added ability to compute APSDs, CPSDs, and (Multiple) Coherence from time data
• Added functions to find reciprocal functions (reference/response and response/reference) and drive point functions (reference = response)
• Added more function types to the top-level namespace
• Fixed a bug in window function application where you couldn't pass a numpy array as a window function.
• Added ability to specify which part of the FRF to plot (real, imaginary, magnitude, phase)
• Added new plotting capabilities
  • Plotting data as an image
  • Plotting coherence overlaid with FRFs
  • Added ability to put markers on the GUIPlot and standard plot functions
• Added mode markers to resynthesis plots in PolyPy
• Added a function to read modal fit data from PolyPy
• Finally added a table to select the mode to plot in the mode shape plotter, also allowing you to edit comments on the modes.
• Added a ModalTest class to represent a complete modal test with many plotting capabilities
• Fixed a bug where the maximum excitation frequency was ignored for a multiple-hammer test simulation
• Fixed a bug in PolyPy where participation factors near zero caused the poles to look unstable
• Added ability to read binary UFF files (Thanks Thomas!)
• Fixed the colormap to allow for more than 10 lines on a plot.
• Fixed a bug where rigid body modes were incorrectly created for cylindrical and spherical coordinate systems
• Overhauled the code for fitting mode shapes and added significant documentation for understanding complex modes
• Added a new FRF computation approach: Local Rational Modeling (Thanks Keaton!)
• Fixed geometry plotting due to depreciated capability in VTK
• Added ability to read geometry from an Excel spreadsheet (Thanks Brandon!)
• Added methods to offset node ids in CoordinateArrays
• Added method to strip transformations from a system object