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Blog, Tutorials & Release Notes

Welcome to the PEAXACT blog! Here, you'll find in-depth insights into the software, along with expert tips and tricks to enhance your experience.

PEAXACT 3 Release Notes

Release Highlights
Known Issues
Upgrade Notes
Compatibility Considerations
Other Releases

Version 3.7.2: 2015-06-23

  • Leave-N-out cross-validation always uses N=1 instead of user setting
  • Missing file dialog when creating a mean or representative sample
  • Error when canceling auto-fitting of peaks
  • Selecting elements in the Data Set Panel does not work correctly
  • Data Table Editor may assign cell values to incorrect features

Version 3.7.1: 2015-05-13

  • Fixed some graphical glitches
  • Removing the Hard Model does not properly remove related plots as well
  • Undoing peak deletions does not properly update peak plots

Version 3.7.0: 2015-03-31

  • Preferences profile for NMR
  • Calibration Report shows bias of validation
  • Calibration Details Report also shows non-predictive features
  • (Application Server) HoloPro Interface provides a setup dialog for logging options
  • Constrained axes zooming and panning (horizontally, vertically)
  • Several performance and usability improvements. See Upgrade Notes.
  • (Data Inspector) Importing pretreatment settings is now done by using the "Import" button in the Data Plotter tab
  • (Data Inspector) "Sample Sequence" has been renamed to "Sample Index"
  • Adjusting hard model parameters now only changes peak parameters while keeping component weights at 1
  • Test-set validation is now automatically performed if data is available
  • (Application Server) The ProgID for COM object creation has changed. See Upgrade Notes.
  • (Application Server) COM events have been removed due to limitations involving multi-threading. See Upgrade Notes.
  • Graphics bugs with certain video cards. See Known Issues.
  • (Application Server) HoloPro Custom Interface freezes without errors
  • PEAXACT sometimes crashes when sending a service request
  • Peak Search Report throws an error if no peaks were found
  • Temporary image files for PDF reports don't get deleted
  • Ratiometric calibration might divide by zero in rare cases
  • Incorrect loading of data table files which contain both absolute and relative paths
  • (Data Inspector) Title of Feature Plot not updated correctly

Known Issues

  • PEAXACT may hang or crash after resuming from Windows Sleep/Hibernation Mode. Make sure to always save your PEAXACT session before sleep/hibernation to prevent data loss.
  • PEAXACT crashes when resizing the Data Table Editor (Data Inspector Window) while the right panel is collapsed.
  • Graphics issues with some video cards, such as flipped text, repeated axes labels, black bars, etc. Start PEAXACT with command line option -openglfix to switch to a different graphics renderer.

Upgrade Notes

  • This update is free of charge for users with a valid license for version 3.x.
  • PEAXACT 3.7 uses a more efficient data structure. Loading old session files may take longer than usual because the data structure gets updated. Save such sessions after loading in order to update the session file permanently.
  • If you are using the PEAXACT Application Server COM API, including in OPUS PROCESS scenario files, you must change the ProgId for the CreateObject() function to PEAXACT.Toolbox.3_7
  • If you are using the PEAXACT Application Server COM API, you must remove the onProgressChanged and onException events. There is no replacement for the onProgressChanged event. Exception handling should be done by checking function return values and calling getLastErrorMessage().

Compatibility Considerations

  • PEAXACT 3.7 is backward compatible. You can load model and session files saved with earlier versions.

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