fdasrvf2.3.4 package

Elastic Functional Data Analysis

align_fPCA

Group-wise function alignment and PCA Extractions

ampbox_data

Amplitude Boxplot Data

bootTB

Tolerance Bound Calculation using Bootstrap Sampling

boxplot.fdawarp

Functional Boxplot

calc_shape_dist

Elastic Shape Distance

curve_boxplot

Curve Boxplot

curve_depth

Calculates elastic depth for a set of curves

curve_dist

Distance Matrix Computation

curve_geodesic

Form geodesic between two curves

curve_karcher_cov

Curve Karcher Covariance

curve_karcher_mean

Karcher Mean of Curves

curve_pair_align

Pairwise align two curves

curve_principal_directions

Curve PCA

curve_srvf_align

Align Curves

curve_to_q

Curve to SRVF Space

curve2srvf

Converts a curve to its SRVF representation

curvebox_data

Curve Boxplot Data

discrete2curve

Converts a curve from matrix to functional data object

discrete2warping

Converts a warping function from vector to functional data object

elastic_amp_change_ff

Elastic Amplitude Changepoint Detection

elastic_change_fpca

Elastic Changepoint Detection

elastic_ph_change_ff

Elastic Phase Changepoint Detection

elastic.depth

Calculates elastic depth

elastic.distance

Calculates two elastic distance

elastic.logistic

Elastic Logistic Regression

elastic.lpcr.regression

Elastic logistic Principal Component Regression

elastic.mlogistic

Elastic Multinomial Logistic Regression

elastic.mlpcr.regression

Elastic Multinomial logistic Principal Component Regression

elastic.pcr.regression

Elastic Linear Principal Component Regression

elastic.prediction

Elastic Prediction from Regression Models

elastic.regression

Elastic Linear Regression

f_plot

Plot functional data

f_to_srvf

Transformation to SRVF Space

fdasrvf

Elastic Functional Data Analysis

function_group_warp_bayes

Bayesian Group Warping

function_mean_bayes

Bayesian Karcher Mean Calculation

gam_to_h

map warping function to tangent space at identity

gam_to_v

map warping function to tangent space at identity

gauss_model

Gaussian model of functional data

get_distance_matrix

Computes the distance matrix between a set of shapes.

get_hilbert_sphere_distance

Computes the geodesic distance between two SRVFs on the Hilbert sphere

get_identity_warping

Computes the identity warping function

get_l2_distance

Computes the L2L^2 distance between two SRVFs

get_l2_inner_product

Computes the L2L^2 inner product between two SRVFs

get_shape_distance

Computes the distance between two shapes

get_warping_distance

Computes the distance between two warping functions

gradient

Gradient using finite differences

h_to_gam

map shooting vector to warping function at identity

horizFPCA

Horizontal Functional Principal Component Analysis

inv_exp_map

map square root of warping function to tangent space

invertGamma

Invert Warping Function

joint_gauss_model

Gaussian model of functional data using joint Model

jointFPCA

Joint Vertical and Horizontal Functional Principal Component Analysis

jointFPCAh

Joint Vertical and Horizontal Functional Principal Component Analysis

kmeans_align

K-Means Clustering and Alignment

LongRunCovMatrix

Long Run Covariance Matrix Estimation for Multivariate Time Series

multiple_align_functions

Group-wise function alignment to specified mean

multivariate_karcher_mean

Karcher Mean of Multivariate Functional Data

optimum.reparam

Align two functions

outlier.detection

Outlier Detection

pair_align_functions_bayes

Align two functions

pair_align_functions_expomap

Align two functions using geometric properties of warping functions

pair_align_functions

Align two functions

pair_align_image

Pairwise align two images This function aligns to images using the q-m...

pcaTB

Tolerance Bound Calculation using Elastic Functional PCA

phbox_data

Phase Boxplot Data

plot_curve

Plot Curve

predict.hfpca

Elastic Prediction for functional PCA

predict.jfpca

Elastic Prediction for functional PCA

predict.jfpcah

Elastic Prediction for functional PCA

predict.lpcr

Elastic Prediction for functional logistic PCR Model

predict.mlpcr

Elastic Prediction for functional multinomial logistic PCR Model

predict.pcr

Elastic Prediction for functional PCR Model

predict.vfpca

Elastic Prediction for functional PCA

q_to_curve

Convert to curve space

reparam_curve

Align two curves

reparam_image

Find optimum reparameterization between two images

resamplecurve

Resample Curve

rgam

Random Warping

sample_shapes

Sample shapes from model

shape_CI

Shape Confidence Interval Calculation using Bootstrap Sampling

smooth.data

Smooth Functions

SqrtMean

SRVF transform of warping functions

SqrtMeanInverse

SRVF transform of warping functions

SqrtMedian

SRVF transform of warping functions

srvf_to_f

Transformation from SRSF Space

srvf2curve

Converts from SRVF to curve representation

time_warping

Alignment of univariate functional data

to_hilbert_sphere

Projects an SRVF onto the Hilbert sphere

v_to_gam

map shooting vector to warping function at identity

vertFPCA

Vertical Functional Principal Component Analysis

warp_curve

Applies a warping function to a given curve

warp_f_gamma

Warp Function

warp_q_gamma

Warp SRSF

warp_srvf

Applies a warping function to a given SRVF

Performs alignment, PCA, and modeling of multidimensional and unidimensional functions using the square-root velocity framework (Srivastava et al., 2011 <doi:10.48550/arXiv.1103.3817> and Tucker et al., 2014 <DOI:10.1016/j.csda.2012.12.001>). This framework allows for elastic analysis of functional data through phase and amplitude separation.

  • Maintainer: J. Derek Tucker
  • License: GPL-3
  • Last published: 2024-12-06