Changes in version 4.1.0                        

  - Update to lsei.f to fix a warning produced by GCC 16.
  - Changed the default segmentation method to rpyants for fit_svs.

                 Changes in version 4.0.0 (2026-05-08)                  

  - qr.solve reverts to ginv for rats in rare cases where qr.solve
    fails.
  - fit_svs updated to only accept a single argument for remove_basis.
  - Bug fix for Siemens DICOM reader.
  - Added support for T1 tissue segmentation using binary installation
    of ANTs : https://github.com/antsx/ants
  - Added support for T1 defacing with the FaceOff method :
    https://github.com/srikash/FaceOff
  - Added cross-platform support for T1 tissue segmentation using ANTs
    via the rpyANTs package : https://github.com/dipterix/rpyANTs

                 Changes in version 3.9.0 (2026-02-23)                  

  - Added extra pre_align options to fit_svs.
  - Added extra plot to fit_svs html output to help diagnose frequency
    alignment problems.

                 Changes in version 3.8.0 (2025-12-16)                  

  - Added deface option to fit_svs.
  - Added overwrite option to fit_svs.
  - fit_svs and fit_svs_edited now accept vectorised file inputs for
    batch analyses.

                 Changes in version 3.7.0 (2025-11-20)                  

  - Added lb_renoise function for fMRS analyses.
  - Added paths2df function to help extract ID fields from a vector of
    paths.
  - Added trim_paths and match_files functions to help with filesystem
    based data discovery.

                 Changes in version 3.6.0 (2025-09-22)                  

  - Added mean_dyns_scheme function.
  - Millisecond option added to plot x scale.
  - Added read_basis_niidir and write_basis_niidir functions for
    import/export of basis sets stored as a group of NIfTI MRS files.

                 Changes in version 3.5.0 (2025-08-18)                  

  - Added a function to help bids sorting of MRS and MRI data :
    mr_data2bids.
  - Extra options to fit_svs : dfp_corr_ref_subset and w_ref_subset.
  - fit_svs default now uses the mean of all available water reference
    scans, rather than just the first dynamic. Set w_ref_subset = 1 to
    reproduce previous results.

                 Changes in version 3.4.0 (2025-06-11)                  

  - Added a function to read DKD's sLASER MoCo log file.
  - Bug fix for TE parameter determination from Siemens IMA files.

                 Changes in version 3.3.0 (2025-03-28)                  

  - Added voxel render on MRI images to fit_svs.
  - Added voxel segmentation render and support to fit_svs.
  - Bug fix for TE parameter determination from Siemens TWIX files.
  - Added extra output data from fit_svs to aid group analyses.

                 Changes in version 3.2.0 (2025-02-14)                  

  - Individual metabolite plots in the html report are now labelled to
    workaround an R Markdown bug where identical plots (eg when signal
    is zero) are sometimes not shown.
  - Added get_hrf function to spant namespace.
  - Tentative support for a command line interface : spant_fit_svs.
  - Tentative support for LCModel analysis in the fit_svs function and
    cli.

                 Changes in version 3.1.0 (2024-12-17)                  

  - Tentative implementation of a standard single voxel MRS processing
    pipeline function: fit_svs.
  - spant user guide has been added to the project:
    https://spantdoc.wilsonlab.co.uk/
  - Implemented basis caching for sim_basis.
  - scale_amp_molar function has been depreciated. Please use
    scale_amp_legacy for LCModel style concentration scaling instead.
  - Assumed T1 and T2 relaxation values for molal concentration scaling
    have been updated. See the user guide for details.

                 Changes in version 2.24.0 (2024-11-14)                 

  - Added argument to adjust the legend font size in ortho3 function.
  - Improved metabolite simulation performance thanks to the expm
    package recently adding support for complex matrices.

                 Changes in version 2.23.0 (2024-08-27)                 

  - abfit options for lipid and MM maximum broadening and maximum
    frequency shift now default to be the same as the metabolite values
    unless explicitly changed.
  - Added function to calculate the correlation matrix from a basis_set.
  - Fix for RDA files where a comma is sometimes used as a decimal
    point.

                 Changes in version 2.22.0 (2024-07-11)                 

  - Added find_bids_mrs and mrs_data2bids helper functions.
  - Improved handling of CMRR semi-LASER SVS water reference scans.
  - Added functions for GLS coil combination.

                 Changes in version 2.21.0 (2024-05-30)                 

  - Fixed compiler warnings for Fortran code.
  - Added glm_spec function.
  - Added add_noise_spec_snr function.

                 Changes in version 2.20.0 (2024-05-01)                 

  - Added vertical line colour and linetype options for stackplots.
  - Added option to give Y axis labels in units of seconds for
    spectrograms.

                 Changes in version 2.19.0 (2024-03-22)                 

  - Removed dependency on smoother package.
  - Added functions for generating BOLD and trapezoidal response shapes.

                 Changes in version 2.18.0 (2024-02-23)                 

  - Improved automated file type detection.
  - Bug fixes for DICOM MRS reader.
  - scale_spec function now works with basis set objects.
  - Added invert_fit option to plotting methods.

                 Changes in version 2.17.0 (2023-11-28)                 

  - Simulation duration output is now rounded to 2dp.
  - sim_basis now accepts a character vector of molecular names.
  - Added get_1h_brain_basis_names function.

                 Changes in version 2.16.0 (2023-10-23)                 

  - Added subset option to mean_dyns function.
  - Added vline option to plot.
  - Added common 31P brain metabolites.
  - Added verbose option to sim_basis.

                 Changes in version 2.15.0 (2023-09-14)                 

  - An SNR estimate of zero in comb_coils is now a failure case.
  - Bug fix for GE pfile reader header revision 20.
  - Added a function for finding valid MRS files : find_mrs_files.

                 Changes in version 2.14.0 (2023-07-19)                 

  - Added vline argument to stackplot function.
  - Added functions to set MRS data TR and number of transients.

                 Changes in version 2.13.0 (2023-06-26)                 

  - Improved defaults for sim_brain_1h function.
  - Added scale_basis_amp function.
  - Added crop_basis function.

                 Changes in version 2.12.0 (2023-05-22)                 

  - Amplitude scaling functions duplicate water reference amplitudes
    when sensible.
  - Added hline option to the mrs_data plot function.

                 Changes in version 2.11.0 (2023-04-22)                 

  - Bug fix for Siemens RDA slice thickness detection.
  - ProtocolName is now read from GE p-files.

                 Changes in version 2.10.0 (2023-03-20)                 

  - Tentative support for UIH DICOM MRS format.
  - Improved support for reading GE p-files.
  - Added a WIP function to export a one-page summary pdf of the fit
    result "one_page_pdf".

                 Changes in version 2.9.0 (2023-03-03)                  

  - Bug fix when using align function with masked data.
  - mean_dyn_blocks returns the input data when block_size is set to 1.

                 Changes in version 2.7.0 (2023-01-28)                  

  - Added Manufacturer tag to metadata.
  - Added mask_xy_corners and mask_xy_ellipse functions.
  - Added functions to fit T1 and T2 relaxation curves.
  - Updated CI checks.

                 Changes in version 2.6.0 (2023-01-06)                  

  - Masked spectra plotted with image are now shown with a value of
    zero.
  - Added function to read .pta files - read_pulse_pta.
  - Added a function to make basis set objects from a directory of
    LCModel formatted RAW files - make_basis_from_raw.
  - Added horizontal line to fit result plots.
  - Improvements to reading LCM .raw files with variable numerical
    columns.

                 Changes in version 2.5.0 (2022-12-06)                  

  - Improved function documentation for water concentration scaling.
  - Added water and tCr scaling examples to the introduction vignette.
  - Better error checking for reading ima files.
  - read_basis function improved to work with variable formatting.
  - Improved default method of time-domain signal amplitude estimation.
  - Added helper functions for working with basis set objects:
    scale_basis_from_singlet, resample_basis and get_basis_subset.
  - Bug fix for STEAM basis simulation being incorrectly scaled for
    internal water scaling methods.

                 Changes in version 2.4.0 (2022-11-07)                  

  - Performance improvement for reading VD format TWIX files.
  - Function added to scale all metabolite levels by a set value
    (scale_amp_ratio_value).

                 Changes in version 2.3.0 (2022-10-12)                  

  - Verbose option added to read_ima_coil_dir and read_ima_dyn_dir
    functions.
  - Support added for reading jMRUI txt formatted MRS data.
  - sim_brain_1h default sequence changed to semi-LASER and
    line-broadening option added.
  - Bug fix for reading LCModel RAW files.
  - Bug fix for HSVD filter when only 0 or 1 components are found in the
    filter region.
  - Improved removal of unwanted data points for reading TWIX formatted
    data.
  - A json sidecar is automatically written when exporting NIfTI MRS
    formatted data.
  - TWIX reader improved to only read data points from the last scan in
    the file. This also fixes a rare bug.

                 Changes in version 2.2.0 (2022-09-08)                  

  - peak_info function now works with masked datasets.
  - Bug fix for HSVD function not working with frequency domain data.
  - Bug fix for TWIX affine calculation when not using power of two
    matrix dimensions.
  - New function (crop_td_pts_pot) to round a dataset length down to the
    nearest power of 2.
  - Added ret_metab_only option to comb_coils.
  - rats now only returns the corrected data by default, note this could
    break old code.

                 Changes in version 2.1.0 (2022-07-21)                  

  - y-axis label can now be changed with a new argument (yaxis_lab) to
    plot.mrs_data.
  - Segmentation files are now checked for non-integer values.
  - gridplot has better row and col number defaults for MRSI, and has a
    bug fix for plotting masked spectra.
  - Updated functions for dealing with lists of MRSI datasets.
  - Bug fix for crop_xy function when working with odd matrix sizes.

                 Changes in version 2.0.0 (2022-06-22)                  

  - magrittr pipe (%>%) is no longer loaded together with spant now the
    base pipe is part of R. Vignettes and tests have been updated to use
    the base pipe.
  - NIfTI MRS writer no longer fails when dealing with a NULL affine
    matrix.
  - Bug fix for NIfTI MRS writer, where frequency domain data was not
    correctly converted to time-domain before export.

                 Changes in version 1.22.0 (2022-05-27)                 

  - Added MSM and acetone to the set of internally defined molecules.
  - write_mrs_nifti function removed from userspace. write_mrs should be
    used instead.
  - set_td_pts and crop_td_pts now work with lists of spectra.
  - Multiple files can now be written by passing a list of spectra to
    write_mrs.

                 Changes in version 1.21.0 (2022-05-03)                 

  - Bug fix for get_mrsi_voi function due to incorrect rounding of MRSI
    matrix dimensions in some cases.
  - Added mask_fit_res function.
  - Option added to get_2d_psf function to ensure odd output dimensions.
  - Bug fix for using rats on datasets with masked voxels.
  - Added spec_decomp function.
  - Added ret_scale_factor option to scale_spec function.

                 Changes in version 1.20.0 (2022-03-30)                 

  - Options added to ft_dyns to return the modulus of the 2D spectra and
    to pre-transform the chemical shift axis if needed.
  - Bug fix for printing lists of mrs_data objects.
  - comb_coils function now supports lists of mrs_data objects.
  - IMA reader now respects the verbose option in read_mrs.
  - Bug fix for get_mrsi_voi ignoring the ker argument.
  - Bug fix for reading Siemens TWIX files.

                 Changes in version 1.19.0 (2022-02-14)                 

  - Added sum_mrs_list function.
  - Bug fix for operating on mrs_data with single values that aren't
    numeric types. For example, multiplying mrs_data by a single complex
    number now works.
  - A number of common preprocessing functions now operate on lists of
    mrs_data objects.
  - Change to NIfTI MRS reader to fix a failing test when using the
    development version of RNifti.

                 Changes in version 1.18.0 (2022-02-08)                 

  - Better behaviour when using stackplot with single spectra datasets.
  - Better behaviour when using image with single spectra datasets.
  - Bug fix for reading MEGA-PRESS data in TWIX format.
  - Better error checking for lists of spectra.
  - Bug fix for calculating NAA linewidth from MEGA-PRESS data.

                 Changes in version 1.17.0 (2022-01-07)                 

  - New function added (recon_twix_2d) for reconstructing basic phase
    encoded twix 2D MRSI data.
  - File name argument for read_mrs now permits globbing, eg
    read_mrs("*.dcm").
  - Improved plotting of metabolite maps containing infinite values.
  - Improvements to GE p-file reader.
  - Bug fix for TWIX MRSI voxel dimensions.
  - get_mrsi2d_seg now returns partial volume maps as well as a data
    frame.
  - Improved error handling for spec_op function.
  - apodise_xy can now be applied to multi-coil and dynamic datasets.

                 Changes in version 1.16.0 (2021-11-18)                 

  - The package has been published in the Journal for Open Source
    Software : "spant: An R package for magnetic resonance spectroscopy
    analysis. JOSS 2021, 6(67), 3646".
  - The basis result of the HSVD function is now an mrs_data object.
  - The complete model signal is now output by the HSVD function.
  - image function x-axis updated to be consistent with other plotting
    methods.
  - Minor refactor of the simulation code and a dependency swap from
    complexplus to exmp packages.

                 Changes in version 1.15.0 (2021-10-22)                 

  - Added a unit test for reading and writing LCM .basis formatted
    files.
  - Added FWHM estimates for tCr and tCho in ABfit.
  - Added water suppression efficiency and water FWHM measures to the
    diagnostic output of svs_1h_brain_analysis.
  - Added get_head_dyns and get_tail_dyns to return the first and last
    dynamic scans within a dataset.
  - Fixed CI errors.
  - Improved installation instructions.
  - Removed comb_csv_results function and reduced the number of required
    packages.

                 Changes in version 1.14.0 (2021-07-23)                 

  - Added glycerol simulation parameters, e.g. get_mol_paras("glyc").
  - Bug fix for read_ima_* functions.
  - Improved y = 0 baseline for stackplot when setting bl_lty parameter.
  - Removed norm_mrs function and replaced with scale_spec for simple
    data scaling tasks, eg scaling based on the integration of a
    spectral region.
  - Added spec_op function for performing simple summary operations on
    spectral segments.
  - Changed the name of scale_mrs function to scale_mrs_amp.
  - Added mean_mrs_list function.
  - Improved LCM RAW and BASIS readers (contribution from Alex Craven).

                 Changes in version 1.13.0 (2021-06-09)                 

  - ABfit frequency shifts limits are now specified in ppm rather than
    Hz to improve consistency between field strengths.
  - NAA linewidth is now estimated and output by ABfit when NAAG is
    absent - useful for BRAINO phantom scans.
  - Warning now given when spectra are mathematically combined and are
    not both in the same time/frequency domain.
  - sum_mrs function added to simplify combining spectra within a pipe.
  - scale_mrs function added to simplify scaling a spectrum within a
    pipe.
  - add_noise function added to simplify generating simulated data with
    a pipe.
  - hsvd_filt function now accepts a frequency range in ppm units and
    gives the option to return the model rather than the filtered data.
  - Bug fix for hsvd_filt function where the max_damp argument was
    ignored.
  - SVS reference scans, found in some TWIX files, are now removed by
    default.
  - Bug fix for reading list/data when only one coil element is used.

                 Changes in version 1.12.0 (2021-05-05)                 

  - Added 2HG and citrate simulation parameters. e.g.
    get_mol_paras("2hg").
  - Better print output for molecular definitions.
  - Added metabolite and basis simulation vignettes.
  - Bug fix for setting the ppm reference when reading LCModel RAW
    files.
  - Bug fix for ABfit CRLB calculation of combined signals, eg tNAA,
    tCr.

                 Changes in version 1.11.0 (2021-03-28)                 

  - Options added to allow extra information to attached to mrs_data and
    fit_result objects as a data frame.
  - New functions (combine_fit_XXX) for working with multiple fit
    results contained within a list structure.
  - Basis set and noise region are now checked for validity in ABfit.
  - Added spant_abfit_benchmark function.
  - Tentative functions for performing "standard" 1H brain analyses:
    svs_1h_brain_analysis and svs_1h_brain_batch_analysis.
  - Improved support for LCModel analyses.

                 Changes in version 1.10.0 (2021-01-06)                 

  - Fix for NIfTI MRS reader/writer.
  - ortho3 now shows correct labels for orientations other than RAS.
  - ortho3_int function renamed to ortho3_inter.
  - Argument order change to plot_voi_overlay and plot_voi_overlay_seg
    to be more consistent with ortho3.
  - Regression fix for partial volume segmentation plotting.
  - Echo time parameter is now stored in the meta structure.
  - ABfit now performs a 1D phase parameter search before the prefit
    stage to improve reliability. May be disabled with the
    prefit_phase_search fit option.

                 Changes in version 1.9.0 (2020-12-15)                  

  - NIfTI MRS reader and writer now uses the header extension for
    metadata. Thanks to Jon Clayden for adding extension read/write
    support to the RNifti package.
  - Default plots now have gridlines in the y-direction and the plot
    line is now thicker and coloured blue.
  - Opacity option added to the plotting functions (alpha).
  - Bug fix for comb_coils with SVS data.
  - Bug fixes for Siemens geometry information.
  - Changed the ordering of arguments to write_mrs and write_mrs_nifti
    to improve consistency with other functions.
  - Internal function (ortho3) now used to plot voxel locations on MRI.
  - Internal dicom reader function added.
  - Tentative support for Siemens and Philips DICOM MRS format added.
  - Internal changes to the way orientation information is handled.

                 Changes in version 1.8.0 (2020-11-18)                  

  - Added gridplot function.
  - New functions added for down sampling.
  - Added signal space projection method for MRSI.
  - Geometry information is now read from Siemens twix files.
  - GitHub actions are now used for continuous integration instead of
    Travis and AppVeyor.
  - Added precomp function to avoid repeated computation.
  - mrs_data2mat function now collapses all dimensions to dynamics by
    default.
  - mrs_data objects now store the nucleus.
  - Added a reader for old Varian format (fid/procpar) data.

                 Changes in version 1.7.0 (2020-07-09)                  

  - Added write_mrs function which guesses the output format from the
    file extension or can be specified as an argument. write_mrs_XXX
    functions have been depreciated.
  - read_mrs function now tries to guess the format from the file
    extension.
  - Added json sidecar to NIFTI MRS export function.
  - Added the option to read MRS data from a NIFTI file and json sidecar
    using the read_mrs function.
  - Changed default crop_spec region to between 4.0 and 0.2 ppm.

                 Changes in version 1.6.0 (2020-06-05)                  

  - Bug fix for GE P file reader.
  - Added downsample_mrs function.
  - Tentative function (write_mrs_nifti) to write MRS data as a NIFTI
    format file

  - for evaluation purposes only.

                 Changes in version 1.5.0 (2020-05-11)                  

  - Added an option to ABfit to allow the metabolite amplitudes to be
    negative (ahat_calc_method).
  - Removed lsei package dependency.

                 Changes in version 1.4.0 (2020-04-20)                  

  - Added the option to plot a y = 0 baseline trace for
    stackplot.mrs_data.
  - Added convenience functions to read and write mrs_data to rds
    format.

                 Changes in version 1.3.0 (2020-04-03)                  

  - Added get_fit_table function to combine all fit tables in a
    fit_result object into a single dataframe.
  - ppm function can now be applied to fit result objects.
  - Bug fix for plot_slice_fit_inter and added the option to specify a
    denominator.
  - Added the option to specify a denominator to plot_slice_fit.

                 Changes in version 1.2.1 (2020-03-15)                  

  - Added the option to display a progress bar in fit_mrs function for
    better conformance to "Writing R Extensions" in non-interactive use.
  - Changed test tolerance to accommodate differences with OSX.

                 Changes in version 1.2.0 (2020-03-11)                  

  - Performance improvement for HSVD water filter.
  - ABfit unit tests are now run on simulated data to improve
    consistency between different platforms.
  - Improvements to fit amplitude scaling code.
  - Improved checking for mrs_data processing functions.
  - Added preprocessing steps vignette.

                 Changes in version 1.1.0 (2020-03-01)                  

  - Improved ppm labels for ABfit plot results.
  - Bug fix for plot_slice_fit when using fits from masked data.
  - Updated unit tests.
  - Added vignette on manually adjusting ABfit baseline smoothness.
  - Updated the introduction vignette.
  - Bug fixes for image and stackplot functions for masked MRS data.
  - Bug fix for using RATS with masked MRS data.
  - Changes to prepare for for R 4.0.0.

                 Changes in version 1.0.0 (2020-02-17)                  

  - ABfit analysis method has been added, and is now default for the
    mrs_fit function.
  - Added reader for LCModel RAW format data.
  - Added read_mri_dyn_dir function for reading dynamic MRS exported
    from Siemens scanners.
  - Bug fixes for 2D MRSI voxel segmentation calculation.
  - Bug fixes for Siemens IMA format reader for SVS data.
  - Optional colourbar added to ortho3 function.

                 Changes in version 0.19.0 (2019-12-06)                 

  - Added Asc, BHB, Cho, PEth and Ser simulation parameters.
  - Added ker option to get_mrsi_voi function.
  - Added append_basis function to combine two basis sets objects.
  - The align function now accepts more than one reference frequency.

                       Changes in version 0.17.0                        

  - Added a function to grid shift 2D MRSI data in the x/y direction.
  - Better plotting/fitting support for masking data by setting data
    points to NA.
  - Bug fix for interactive voxel selection position indicator.
  - Added mask_xy to mask voxels in a centred rectangular region.
  - Minor changes to improve parallel processing support.

                 Changes in version 0.16.0 (2019-10-30)                 

  - SNR is now defined as the max data point divided by the standard
    deviation of the noise (n.b. factor of two has been removed in-line
    with upcoming terminology paper).
  - Default rats method improved to work with multidimensional datasets.
  - Added norm_mrs function to normalise the intensity of spectral data.
  - Added bc_constant function to correct spectral baselines by a
    constant offset.
  - Added re_weighting function to apply a resolution enhancement
    weighting to the FID.
  - Performance improvement for apodise_xy function.
  - sd function now works for mrs_data.
  - Added 2D MRSI support for Siemens IMA format.

                 Changes in version 0.15.0 (2019-09-19)                 

  - Bug fix for using auto_phase function with a single spectrum.
  - Bug fix for comb_coils not returning unaveraged data when requested.
  - Added options to combine metabolite signals from the stackplot of a
    fit object and adjust the plot margins.
  - Added comb_fits function.
  - Added collapse_to_dyns function for mrs_fit objects.
  - RDA reader now extracts geometry information.

                 Changes in version 0.14.0 (2019-05-28)                 

  - Added options to omit basis signals, change label names and combine
    lipid and MM signals from the stackplot of a fit object.
  - Added auto_phase function for zeroth order phase-correction of
    simple spectra.
  - Added get_subset function to aid MRSI slicing.
  - Added decimate_mrs function.
  - Added fit_amps function to quickly extract amplitude estimates from
    a fit object.
  - Bug fix for int_spec function.
  - sim_basis function arguments updated to accept acq_par objects.

                 Changes in version 0.13.0 (2019-04-25)                 

  - Various bug fixes for Siemens TWIX reader.
  - rats and tdsr functions now use the mean spectrum as the default
    reference.
  - Added the option to remove the x axis in an mrs_data plot.
  - Added ylim and y_scale options to fit plotting.
  - Added %$% operator from magrittr package.
  - Added an interpolation option to calc_spec_snr.
  - Added hline and vline options to image.mrs_data.

                 Changes in version 0.12.0 (2018-11-05)                 

  - Fit results stackplot now has the option to display labels.
  - Added the option to reverse eddy current correction.
  - Improved GE p-file reader.
  - diff function can now be applied to mrs_data objects.
  - Complex functions: Re, Im, Mod, Arg and Conj can now be applied to
    mrs_data objects.
  - Default simulations for Glc and NAAG have been improved.

                 Changes in version 0.11.0 (2018-07-20)                 

  - Added mar argument to plot command.
  - td2fd and fd2td now give warnings when used with data already in the
    target domain.
  - Improved documentation formatting consistency and fixed some
    spelling errors.
  - Added rats method.

                 Changes in version 0.10.0 (2018-06-25)                 

  - The names of in-built pulse sequence functions now all start with
    seq_* to make them easier to find.
  - Added new functions to simulate the following MRS sequences: CPMG,
    MEGA-PRESS, STEAM, sLASER. sLASER sequence kindly contributed by
    Pierre-Gilles Henry.
  - Bug fix for get_mol_names function.
  - stackplot function now accepts labels argument and time-domain
    plotting.
  - def_acq_paras function now accepts arguments to override the
    defaults.
  - Added a source field to mol.paras object to cite the origin of the
    values.
  - Option to restore plotting par defaults.
  - The magrittr pipe operator is now exported.

                 Changes in version 0.9.0 (2018-03-07)                  

  - Updated plotting modes to be one of : "re", "im", "mod" or "arg".
  - Updated int_spec function to use "re", "im", or "mod".
  - Added a function to replicate data across a particular dimension.
  - Added a convenience function to simulate normal looking 1H brain MRS
    data.
  - phase and shift functions now accept vector inputs.

                 Changes in version 0.7.0 (2018-01-31)                  

  - Added new function for frequency drift correction.
  - Added support for Siemens ima and TWIX SVS data.
  - Added support for GE p-file SVS data.
  - Added apply_axes fn.
  - Support for reading SPM style segmentation results
    (spm_pve2categorical).

                 Changes in version 0.6.0 (2017-10-25)                  

  - Interactive plotting function added for fit results -
    plot_fit_slice_inter.
  - Bug fix for appending dynamic results.
  - Bug fix for reading list data files without reference data.
  - Bug fix for append_dyns function.
  - basis2mrs_data function has been extended to allow the summation of
    basis elements and setting of individual amplitudes.
  - Added a shift function for manual frequency shift adjustment.
  - Added initial unit tests and automated coveralls checking.

                 Changes in version 0.5.0 (2017-10-10)                  

  - A default brain PRESS basis is now simulated by the fit_mrs function
    when the basis argument isn't specified.
  - Added calc_peak_info function for simple singlet analyses.
  - crop_spec function now maintains the original frequency scale.
  - The basis set used for analyses has now been added to the fit result
    object.
  - Bug fix for simulating basis sets with one element.
  - lb function can now be used with basis-set objects.
  - Bug fix for spar_sdat reader for non-localised MRS.
  - AppVeyor now being used to test Windows compatibility - John
    Muschelli.

                 Changes in version 0.4.0 (2017-08-09)                  

  - Bug fix for SPAR/SDAT SVS voxel dimensions.
  - MRSI support added for Philips SPAR/SDAT data.
  - Fit plots now default to the full spectral range unless xlim is
    specified.
  - Fit plots allow the x, y, z, coil, dynamic indices to be specified.
  - Added the option to subtract the baseline from fit plots.

                 Changes in version 0.3.0 (2017-06-20)                  

  - Added stackplot method for fit objects.
  - Added functions for registering and visualising SVS volumes on
    images and performing partial volume correction.
  - Philips "list data" also now reads noise scans.
  - calc_coil_noise_cor, calc_coil_noise_sd functions added to aid coil
    combination.
  - Documentation updates for plotting methods.
  - Added some simulation methods to userland.

                 Changes in version 0.2.0 (2017-05-24)                  

  - Added Siemens RDA format reader.
  - Added Philips "list data" format reader.
  - Added Bruker paravision format reader.
  - Added PROPACK option for HSVD based filtering.
  - Added a coil combination function.
  - Bug fix for incorrect ppm scale on fit plots when fs != 2000Hz.
  - Bug fix for VARPRO analytical jacobian calculation.

                 Changes in version 0.1.0 (2017-04-26)                  

  - First public release.