Function reference

tf - (Sub)classes: Constructors & converters

Defining and converting functional data objects

tfd() as.tfd() as.tfd_irreg()

Constructors for vectors of "raw" functional data

tfb() tfb_wavelet() as.tfb()

Constructors for functional data in basis representation

as.data.frame(<tf>) as.matrix(<tf>) as.function(<tf>)

Convert functional data back to tabular data formats

tfb_spline()

Spline-based representation of functional data

tfb_fpc()

Functional data in FPC-basis representation

fpc_wsvd()

Eigenfunctions via weighted, regularized SVD

tf_rebase()

Change (basis) representation of a tf-object

Evaluation and indexing

Accessing, appending and evaluating functional data objects

`[`(<tf>) `[<-`(<tf>)

Accessing, evaluating, subsetting and subassigning tf vectors

tf_approx_linear() tf_approx_spline() tf_approx_none() tf_approx_fill_extend() tf_approx_locf() tf_approx_nocb()

Inter- and extrapolation functions for tfd-objects

tf_evaluate()

Evaluate tf-vectors for given argument values

tf_interpolate()

Re-evaluate tf-objects on a new grid of argument values.

Arithmetic, logical and summary functions

Functionality for computing with and comparing functional data

Ops(<tf>) `==`(<tfd>) `!=`(<tfd>) `==`(<tfb>) `!=`(<tfb>) Ops(<tfd>) Ops(<tfb>) Math(<tfd>) Math(<tfb>) Summary(<tf>) cummax(<tfd>) cummin(<tfd>) cumsum(<tfd>) cumprod(<tfd>) cummax(<tfb>) cummin(<tfb>) cumsum(<tfb>) cumprod(<tfb>)

Math, Summary and Ops Methods for tf

mean(<tf>) median(<tf>) sd() var() summary(<tf>)

Functions that summarize tf objects across argument values

tf_fwise() tf_fmax() tf_fmin() tf_fmedian() tf_frange() tf_fmean() tf_fvar() tf_fsd() tf_crosscov() tf_crosscor()

Summarize each tf in a vector

tf_depth()

Functional Data Depth

Differentiation, integration and simple smoothing

tf_derive()

Differentiating functional data: approximating derivative functions

tf_integrate()

Integrals and anti-derivatives of functional data

tf_smooth()

Simple smoothing of tf objects

Visualization & Display

Graphics functions and print formats

plot(<tf>) lines(<tf>) points(<tf>)

base plots for tfs

print(<tf>) print(<tfd_reg>) print(<tfd_irreg>) print(<tfb>) format(<tf>)

Pretty printing and formatting for functional data

prep_plotting_arg()

Preprocess evaluation grid for plotting

Querying functional data

Locating functional features like peaks or zero-crossings

tf_where() tf_anywhere()

Find out where functional data fulfills certain conditions.

tf_zoom()

Functions to zoom in/out on functions

Utilities

Utility functions

tf_arg() tf_evaluations() tf_count() tf_domain() `tf_domain<-`() tf_evaluator() `tf_evaluator<-`() tf_basis() `tf_arg<-`() coef(<tfb>) rev(<tf>) is.na(<tf>) is.na(<tfd_irreg>) is_tf() is_tfd() is_reg() is_tfd_reg() is_irreg() is_tfd_irreg() is_tfb() is_tfb_spline() is_tfb_fpc()

Utility functions for tf-objects

Generating random functional data

RNGs for curves

tf_rgp()

Gaussian Process random generator

tf_jiggle() tf_sparsify()

Make a tf (more) irregular

Utilities

Utility functions

in_range() `%inr%`

Find out if values are inside given bounds

ensure_list()

Turns any object into a list

unique_id()

Make syntactically valid unique names

vec_cast(<tfd_reg>) vec_cast(<tfd_irreg>) vec_cast.tfd_reg(<tfd_reg>) vec_cast.tfd_reg(<tfd_irreg>) vec_cast.tfd_reg(<tfb_spline>) vec_cast.tfd_reg(<tfb_fpc>) vec_cast.tfd_irreg(<tfd_reg>) vec_cast.tfd_irreg(<tfd_irreg>) vec_cast.tfd_irreg(<tfb_spline>) vec_cast.tfd_irreg(<tfb_fpc>) vec_cast(<tfb_spline>) vec_cast(<tfb_fpc>) vec_cast.tfb_spline(<tfb_spline>) vec_cast.tfb_spline(<tfb_fpc>) vec_cast.tfb_fpc(<tfb_spline>) vec_cast.tfb_fpc(<tfb_fpc>) vec_cast.tfb_spline(<tfd_reg>) vec_cast.tfb_spline(<tfd_irreg>) vec_cast.tfb_fpc(<tfd_reg>) vec_cast.tfb_fpc(<tfd_irreg>) vec_ptype2(<tfd_reg>) vec_ptype2.tfd_reg(<tfd_reg>) vec_ptype2.tfd_reg(<tfd_irreg>) vec_ptype2.tfd_reg(<tfb_spline>) vec_ptype2.tfd_reg(<tfb_fpc>) vec_ptype2(<tfd_irreg>) vec_ptype2.tfd_irreg(<tfd_reg>) vec_ptype2.tfd_irreg(<tfd_irreg>) vec_ptype2.tfd_irreg(<tfb_spline>) vec_ptype2.tfd_irreg(<tfb_fpc>) vec_ptype2(<tfb_spline>) vec_ptype2.tfb_spline(<tfb_spline>) vec_ptype2.tfb_spline(<tfb_fpc>) vec_ptype2.tfb_spline(<tfd_reg>) vec_ptype2.tfb_spline(<tfd_irreg>) vec_ptype2(<tfb_fpc>) vec_ptype2.tfb_fpc(<tfb_spline>) vec_ptype2.tfb_fpc(<tfb_fpc>) vec_ptype2.tfb_fpc(<tfd_reg>) vec_ptype2.tfb_fpc(<tfd_irreg>)

vctrs methods for tf objects

tf tf-package

tf: S3 Classes and Methods for Tidy Functional Data