NEWS

fdasrvf 2.4.4.9000

fdasrvf 2.4.4 (2026-05-07)

expose PNS functions

fdasrvf 2.4.3 (2026-02-20)

bugfixes to ppd
add fasatPNSs2e
bugfixes to curve_functions.R (#63)

fdasrvf 2.4.2 (2025-10-03)

added peak persistent diagram function ppd

fdasrvf 2.4.1 (2025-09-23)

added principal nested spheres code
added horizFPNS function
fixed armadillo deprecated functions
small bugfixes

fdasrvf 2.4.0 (2025-06-27)

bugfixes
removed curve_karcher_mean and curve_srvf_align
renamed curve_karcher_cov to multivariate_karcher_cov
renamed curve_principal_direcions to multivariate_pca
added plotting method for multivariate_karcher_mean
added project and plotting methods for multivariate_pca
all curve functions are under multivariate_karcher_mean (#59)

fdasrvf 2.3.6 (2025-02-17)

bugfixes

fdasrvf 2.3.5 (2025-02-11)

bugfixes

fdasrvf 2.3.4 (2024-12-06)

bugfixes

fdasrvf 2.3.3 (2024-10-04)

bugfixes
added verbose options throughout

fdasrvf 2.3.2 (2024-08-19)

bugfixes
add h representation of warping functions
added h representation to jfpca

fdasrvf 2.3.1 (2024-07-18)

fixes for ATLAS BLAS

fdasrvf 2.3.0 (2024-07-16)

fixed scaling in curve_karcher_mean
parallelized curve_karcher_mean and curve_srvf_align
updated sample_shapes and created curveboxplot (#39)
bugfixes (#38)
improved distance matrix computation (#45)
refactor karcher mean (#40 and #47)
updated README (#50)
updated plotting routines
add elastic changepoint functionselastic_amp_change_ff, elastic_ph_change_ff, and elastic_change_fpca

fdasrvf 2.2.0 (2024-01-24)

bugfixes
added curve_depth function (#31)
clarification of multivariate functional data (#31 and #32)
expanded calc_shape_dist for different pre-shape spaces
expanded curve functions for different pre-shape spaces
added predict functions to fpca to project new samples onto basis

fdasrvf 2.1.2 (2023-12-21)

add rlbfgs c++ code (#30)

fdasrvf 2.1.1 (2023-12-16)

bugfixes (#27)

fdasrvf 2.1.0 (2023-11-18)

added elastic change point functions
exposed SqrtMeanInverse and inv_exp_map to global (#29)
bugfixes

fdasrvf 2.0.3 (2023-10-07)

exposed lam to curve functions
added gamma to shooting vector conversion functions
bugfixes

fdasrvf 2.0.2 (2023-05-13)

added dynamic grid to DP method (#25)
update outputs to curve functions (#26)
extend exp_map to n-d curves (#27)
bugfixes

fdasrvf 2.0.1 (2023-03-03)

Added functionalities to kmeans_align() (#24). Specifically:
- it gains the argument use_verbose which allows the user to suppress information displayed in the console;
- it includes a numeric vector storing the distances to corresponding center for each curve in the output;
- it is now possible to use the medoid as centroid type as an alternative to the mean; the medoid is the most central curve among the existing curves.
Further small improvements, documentation updates and improved code coverage (#23).

fdasrvf 2.0.0 (2023-02-24)

Added multivariate kmeans (#18);
Added additional penalties to warping and additional outputs exposed to bootTB() (#19);
Switch from travis appveyor to GHA for CI and code coverage monitoring (#20);
Bugfixes and documentation updates.

fdasrvf 1.9.8 (2022-06-07)

bugfixes
remove akima to interp

fdasrvf 1.9.7 (2021-06-21)

bugfixes

fdasrvf 1.9.6 (2021-05-07)

bugfixes

fdasrvf 1.9.5

refactor pf curve functions
add curve karcher median
bugfixes

fdasrvf 1.9.4 (2020-10-09)

add elastic depth functions

fdasrvf 1.9.3 (2020-03-07)

fix gfortran issues

fdasrvf 1.9.2 (2019-07-31)

update gropt library

fdasrvf 1.9.1

Added tolerance bound functions

fdasrvf 1.9.0

Added elastic principal component regression functions

fdasrvf 1.8.4

centered rgam calculation
fix bug in curve functions and image registration

fdasrvf 1.8.3 (2017-12-17)

added bayesian alignment method by Y. Lu et. al
added multiple functional alignment function
bugfixes to curve alignment

fdasrvf 1.8.2 (2017-09-21)

added objects for outputs of time_warping, boxplot, and pca functions
added plot methods for the above objects
added summary methods for the above objects
added kmeans clustering and alignment based on Sangalli et al.
multiple bugfixes

fdasrvf 1.8.1 (2017-04-30)

fix boxplot functions documentation
added quantile option
updated surface plot for boxplot functions

fdasrvf 1.8.0 (2017-04-17)

added phase and amplitude boxplot functions
fixed issue with time_warping finding the median

fdasrvf 1.7.1

fix memory leaks in bayesian c code
update SqrtMean calculation to have more numerical accuracy

fdasrvf 1.7.0 (2016-09-15)

added a pair align function for 1-D data
added bayesian alignment for 1-D functions

fdasrvf 1.6.2 (2016-08-22)

updated curve functions to support R^n
cleaned up curve function for loops

fdasrvf 1.6.1 (2016-04-22)

bug fixes to curve functions

fdasrvf 1.6.0 (2016-01-15)

added open and closed curve function (N-D)

fdasrvf 1.5.2

added image alignment functions and fix minor bugs

fdasrvf 1.5.1 (2015-11-16)

added gropt optimization methods and alignment

fdasrvf 1.5.0

added simul optimization method for reparam

fdasrvf 1.4.2 (2014-01-29)

Fixed gradient bug

fdasrvf 1.4.1 (2013-02-25)

Fixed bug in doParallel for windows computers
Fixed numerical issues for high lambda for no warping required

fdasrvf 1.4 (2013-02-18)

Fixed memory leak in Dynamic Programming algorithm
Updated random gamma generation to use a Fourier basis on the tangent space
Changed over parallel support to doParallel
Fixed documentation error

fdasrvf 1.3 (2012-12-26)

Fixed numerical issues
Updated documentation

fdasrvf 1.2 (2012-11-15)

Changed SRVF calculation to use splines for derivatives
Added control to the amount of warping via lambda to the time_warping function
Fixed documentation bugs and minor bugs in horizontal PCA calculation

fdasrvf 1.1 (2012-09-28)

Updated so the parallel functions are windows compatible and windows binary can be compiled, now suggests doSNOW or doMC
Added variance calculation to time_warping function

fdasrvf 1.0 (2012-09-11)

Initial Version of Package