Changes in version 0.2 MsBackendTimsTof 0.2.0 - Add extractByIndex() method and update to newer Spectra package. Changes in version 0.1 MsBackendTimsTof 0.1.5 - Extend vignette and run all unit tests for MsBackend instances from the Spectra package. - Add missing methods (precScanNum, spectraNames and tic). MsBackendTimsTof 0.1.4 - MsBackendTimsTof extends MsBackendCached to support locally change or adding new spectra variables. MsBackendTimsTof 0.1.3 - Add dataOrigin method. MsBackendTimsTof 0.1.2 - Add peaksVariables method. MsBackendTimsTof 0.1.1 - Disable opentimsr parallel processing to not interfere with BiocParallel (issue #16). MsBackendTimsTof 0.1.0 - Import coreSpectraVariables from Spectra and thus depend on Spectra version >= 1.5.14. - Return inv_ion_mobility as a spectraVariable. Changes in version 0.0 MsBackendTimsTof 0.0.8 - Add documentation and vignette. MsBackendTimsTof 0.0.7 - Added msLevel to extract MS level of each spectrum in MsBackendTimsTof objects. MsBackendTimsTof 0.0.6 - Fix issue in spectraData when parameter columns of length 1 is provided (issue [#7] (https://github.com/rformassspectrometry/MsBackendTimsTof/issues/7)). MsBackendTimsTof 0.0.5 - Add test data. - Add show method. - Fix issue in peaksData with duplicated spectra (e.g. due to sps[c(1, 1, 1)]). MsBackendTimsTof 0.0.4 - Fixed a problem in mz, intensity, peaksData methods that caused these methods to return spectra values in wrong order given a reordered MsBackendTimsTof object. - spectraVariables and spectraData methods. - Fixed a problem in file indexing possibly arising after object subsetting. - Unit tests update. MsBackendTimsTof 0.0.3 - Export MsBackendTimsTof function. - Refactor extraction of general spectra variables. MsBackendTimsTof 0.0.2 - mz, intensity, peaksData methods to access m/z, intensities, peak matrices of spectra in the backend. - rtime method to access retention time of spectra in the backend. MsBackendTimsTof 0.0.1 - MsBackendTimsTof class definition. - backendInitialize method to initialize a MsBackendTimsTof backend. - [ method to subset the backend object. - length method to get object length (number of spectra in the backend) - dataStorage method to get the TimsTOF ’*.d’ folders where each spectra is retrieved from.