Quasar
Developed specifically with spectroscopic (and synchrotron) data in mind, Quasar is an open-source software compatible with all common operating systems (Windows, Mac, Linux) for the visualisation and statistical analysis of data sets, including hyperspectral maps. Some of the benefits of using Quasar include:
Can see in seconds the effect of changing a processing step on the output of a multivariate analysis (e.g. HCA or PCA)
Excellent for documenting the processing steps for reproducibility of analysis
Easy to share workflows with students, supervisors and collaborators
Compatible with many file types from different spectroscopy techniques and manufacturers - including OPUS
Built on python code, if a function is missing there is an option to write your own
Download Quasar and Quasar documentation
Quasar is on GitHub
YouTube tutorials from the developers
Canadian Light Source Quasar help
Example workflows
Load a hyperspectra map and integrate
Single spectra experiment - creating a PCA and adding in unknowns
Combining ABS and TRC data blocks from OPUS into one table
Hyperspectra map with HCA and PCA analysis
Videos
Long demonstration video links:
Australian Synchrotron Microscopy Group Workshop 2023: Quasar demonstration
Introduction to Quasar: June 2024
Short demonstration videos (embedded):
OPUS data files used in tutorial videos:
Zebrafish eye section on CaF2 IR window.
Sample was prepared in OCT and cryomicrotomed, so has cutting compound on the outside of the section. Integration has been done in OPUS and saved, a TRC datablock is associated with the OPUS file and can be imported into Quasar as metadata. Thanks to researchers at La Trobe University for sharing their file.