Release notes: XMapTools 4.1

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Published on January 2nd, 2023. 

Release 4.1 includes new functionalities and updates to XMapTools and improvements to stability and compatibility.

General

  • Add tools for single-mask classification and the creation of sub-masks. At the moment, it is recommended to use the Random Algorithm forest for creating sub-masks
  • Add a point counting tool to evaluate pseudo-modes; XMapTools selects randomly pixels on the map and estimates the modal abundances (in %). A version with uncertainty estimation using Monte-Carlo can be activated
  • Add a functionality to calibrate pixels of a selection of masks for standardisation of EPMA data. Note that merged maps are only generated when the option “Apply to all maps” is selected.
  • Add entropic filters to the classification (TEXTF)
  • Add the old function to run XMapTools and open immediately a project in the MATLAB version using the command: “XMapTools open ProjectName”
  • Add a demo version of Bingo-Antidote 2.0 for test purposes
  • Improve stability of XMapTools when a ROI is drawn or edited

LA-ICP-MS

  • Add a multi-standard calibration option which required several major changes in both the import tool and the calibration module for LA-ICPMS data. This update also includes several improvements and minor corrections. Compatibility with data generated using previous versions is not fully maintained
  • Add an option to read the sweep time values for each element from an xml file. Note that the file name should be AcqMethod.xml
  • Improve performances for plotting and ROI interaction of the Spider module

Data Visualisation Module

  • Improve the global performances of the module by implementing the low ressource mode to all plots. Only 20 % of the data points are plotted when this mode is active; this threshold can be adjusted in the option tab
  • Add an option to select a range of data (using the fields Xmin and Xmax) when plotting an histogram
  • Add a plotting report generated while plotting a ternary diagram
  • Add an option to create a single-mask maskfile from he pixels selected by the Identify
  • Add a dropdown menu to select a phase from a maskfile to plot only the pixel compositions of this phase
  • Add an option to avoid plotting zeros; this is important for the fitting tools
  • Fix several issue in the starting function that would prevent the module to open for special cases (e.g. less than 3 maps)

Classification

  • Improve the selection of input data for classification
  • Add an option to select the method used for data scaling
  • Add an option to ensure reproducibility of the classification algorithms based on random numbers (using seeds for the random number generator)
  • Add an option to select the number of trees in the random forest algorithm.

Import Tool

  • Improve compatibility of the EPMA Converter to import data from JEOL microprobes (Windows)
  • Activate map re-sampling and orientation corrections to all data types in the import tools. This resolves an issue when LA-ICPMS data are imported from Iolite. It is not recommended to use these tools for other data types

Other

  • Add an option to unfreeze the interface after an error by simply requesting to close the app. This  option does not require to have unsaved data as in previous versions
  • Add a checking function for the selected training set before classification
  • Add a mask file signature to ensure data compatibility throughout XMapTools and add-ons
  • Improve interface behavior for button availability, tooltips and error messages
  • Improve GUI size for screens with low resolution
  • Improve the plot behaviour of the main tree menu: if a category/dataset from Quanti, Merged, Result, Other, the first element in the list is automatically displayed
  • Export a file Last_LBCsim.txt in the main directory containing each local bulk compositions simulated by XMapTools for estimating the LBC uncertainty.
  • Fix an issue in the classification function when part of the selected maps have been deleted
  • Fix a minor issue in the variable initialisation for mask files
  • Fix several minor issues in the Converter for LA-ICP-MS; reported by Nils Gies
  • Fix several minor issues in the behaviour of ROI for training sets; reported by Nils Gies
  • Fix an issue in the project loading function
  • Other minor bug and fixes

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