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funcharts (version 1.8.0)

Functional Control Charts

Description

Provides functional control charts for statistical process monitoring of functional data, using the methods of Capezza et al. (2020) , Centofanti et al. (2021) , Capezza et al. (2024) , Capezza et al. (2024) , Centofanti et al. (2025) , Capezza et al. (2025) . The package is thoroughly illustrated in the paper of Capezza et al (2023) .

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Install

install.packages('funcharts')

Monthly Downloads

362

Version

1.8.0

License

GPL-3

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Repository

https://github.com/unina-sfere/funcharts

Maintainer

Christian Capezza

Last Published

December 12th, 2025

Functions in funcharts (1.8.0)

Phase I of the Adaptive Multivariate Functional Control Chart (AMFCC).

Phase II of the Adaptive Multivariate Functional Control Chart (AMFCC).

control_charts_sof_pc_real_time

Real-time scalar-on-function regression control charts

control_charts_sof_pc

Control charts for monitoring a scalar quality characteristic adjusted for by the effect of multivariate functional covariates

Robust Multivariate Functional Data Imputation (RoMFDI)

Robust Multivariate Functional Control Charts - Phase II

control_charts_pca_mfd_real_time

Real-time T2 and SPE control charts for multivariate functional data

Produce contribution plots

Add reference lines to all panels of the current multi-panel plot

Bind variables of two Multivariate Functional Data Objects

Air quality data

control_charts_pca

T2 and SPE control charts for multivariate functional data

functional_filter

Finds functional componentwise outliers

estimate_mixture

Performs the estimation of gaussian mixtures of regression models and gaussian mixture models. Used in FMRCC_PhaseI.

get_mfd_array_real_time

Get a list of functional data objects each evolving up to an intermediate domain point.

Function-on-function linear regression based on principal components

Correlation Function for Multivariate Functional Data

Get Multivariate Functional Data from a three-dimensional array

fof_pc_real_time

Get a list of function-on-function linear regression models estimated on functional data each evolving up to an intermediate domain point.

Covariance Function for Multivariate Functional Data

funcharts-package

funcharts: Functional Control Charts

Simulate multivariate functional data

Get out of control observations from control charts

Get Multivariate Functional Data from a data frame

get_mfd_df_real_time

Get a list of functional data objects each evolving up to an intermediate domain point.

get_mfd_list_real_time

Get a list of functional data objects each evolving up to an intermediate domain point.

Get Multivariate Functional Data from a list of matrices

Convert a fd object into a Multivariate Functional Data object.

inprod_mfd_diag

Inner product of two multivariate functional data objects, for each observation

Inner products of functional data contained in mfd objects.

get_sof_pc_outliers

Get possible outliers of a training data set of a scalar-on-function regression model.

get_outliers_mfd

Get outliers from multivariate functional data

Subtract multivariate functional data (and unary negation)

Number of observations in a multivariate functional data object

Mixed Functional Principal Component Analysis (mFPCA)

Define a Multivariate Functional Data Object

Confirm Object has Class mfd

Number of basis functions

Mean Function for Multivariate Functional Data

mixregfit_multivariate

Performs the estimation of gaussian mixtures of regression models and gaussian mixture models. Used in FMRCC_PhaseI.

Add curves to an existing multivariate functional data plot

Add the plot of a new multivariate functional data object to an existing plot.

Setting real-time registration step defaults

plot.FRTM_PhaseI

Plot the results of the Phase I and the Phase II of the FRTM

Multivariate functional principal components analysis

Plot the results of the Mixed Functional Principal Component Analysis (mFPCA)

Norm of Multivariate Functional Data

Number of variables

plot.AMFCC_PhaseI

Plot the results of the Phase I and the Phase II of the AMFCC

predict.pca_mfd

Predict from a multivariate functional PCA

Add multivariate functional data

Plot multivariate functional object over the training data set

Plot the harmonics of a pca_mfd object

pca_mfd_real_time

Get a list of multivariate functional principal component analysis models estimated on functional data each evolving up to an intermediate domain point.

Plot a Multivariate Functional Data Object.

plot_control_charts_real_time

Plot real-time control charts

plot_bootstrap_sof_pc

Plot bootstrapped estimates of the scalar-on-function regression coefficient

plot_control_charts

Plot control charts

Standardize Multivariate Functional Data.

Plot a Bivariate Functional Data Object.

Bind replications of two Multivariate Functional Data Objects

Setting mixed functional principal component analysis (mFPCA) defaults

Setting open-end/open-begin functional dynamic time warping (OEB-FDTW) defaults

Plot multivariate functional data

Robust multivariate functional principal components analysis

regr_cc_sof_real_time

Real-time Scalar-on-Function Regression Control Chart

Functional Regression Control Chart

Simulate example data for funcharts

Scalar-on-Function Regression Control Chart

Use a function-on-function linear regression model for prediction

regr_cc_fof_real_time

Real-time functional regression control chart

Use a scalar-on-function linear regression model for prediction

simulate_data_fmrcc

Simulate Data for Functional Mixture Regression Control Chart (FMRCC)

Get the index of the out of control observations from control charts

simulate_data_FRTM

Simulate data for real-time monitoring of univariate functional data

sof_pc_real_time

Get a list of scalar-on-function linear regression models estimated on functional data each evolving up to an intermediate domain point.

Extract observations and/or variables from mfd objects.

Simulate a data set for funcharts

tensor_product_mfd

Tensor product of two Multivariate Functional Data objects

Scalar-on-function linear regression based on principal components

Pointwise product of multivariate functional data (and scalar multiplication)

simulate_data_RoMFCC

Simulate multivariate functional data with casewise and componentwise contamination

Phase I of the FRTM method.

AMFEWMA_PhaseII

Adaptive Multivariate Functional EWMA control chart - Phase II

Phase II of the FMRCC

Phase II of the FRTM method.

Adaptive Multivariate Functional EWMA control chart - Phase I

Open-end/open-begin Functional Dynamic Time Warping (OEB-FDTW)

Robust Multivariate Functional Control Charts - Phase I

Phase I of the FMRCC