Changes: version 1.2-0 (2025-06-11) 1.) Bug fix in package function 'cpfa' - Previously a bug prevented argument 'cmode' from permuting 'X' when using Parafac models - Now 'cmode' correctly permutes 'X' for Parafac models 2.) Added a short vignette describing how to use the package - Previously package contained no guide for use - Now adds vignette describing how to use the package ---------------- Changes: version 1.1-9 (2025-05-23) 1.) Fixed wording inconsistencies in help files - Previously several help files contained wording errors - Now errors are fixed with improved help file readability 2.) Improved function 'simcpfa' by allowing different error structures - Previously, added error could only come from a standard normal distribution - Now different types of error can be added to the simulated array 3.) Improved function 'simcpfa' by allowing custom classification mode weight matrices - Previously a classification mode weight matrix could not be specified, only generated - Now the classification mode weight matrix can be specified 4.) Improved function 'simcpfa' by allowing additional probability distributions - Previously weights could be drawn from only seven probability distributions - Now weights can be drawn from 12 common probability distributions 5.) Bug fix in package function 'simcpfa' - Previously a bug prevented data from being generated when 'nfac = 1' - Now data can be generated successfully when 'nfac = 1' ---------------- Changes: version 1.1-8 (2025-04-15) 1.) Added new function 'simcpfa' for simulating data structures for 'cpfa' - Previously package 'cpfa' did not have a function to simulate relevant data - Now a new function simulates data arrays that are connected to class labels 2.) Added new internal function 'distdraw' to support new function 'simcpfa' - Previously package did not have a function to simulate data from common distributions - Now a new internal function simulates data from distributions to support 'simcpfa' 3.) Fixed contact email address in package help files - Previously contact email listed in help files was a university email address - Now contact email is listed as a personal email address 4.) Updated references and fixed wording in help files - Previously several help file references were outdated and some wording was vague - Now help file references reflect R package updates and wording is improved ---------------- Changes: version 1.1-7 (2025-02-23) 1.) Updated contact information - Previously the description file contained a university email address for contact - Now the description file contains a personal email address 2.) Improved readability of help and function files - Previously code did not contain consistent spacing for clear reading - Now adds consistent spaces in files to improve code readability 3.) Bug fix in package function 'cpfa' - Previously code contained several incorrect conditional statements - Now conditional statements have been fixed 4.) Bug fix in internal package function 'kcv.plr' - Previously a bug prevented the correct model from being returned when 'nfolds = 2' - Now the correct model is returned when 'nfolds = 2' ---------------- Changes: version 1.1-6 (2024-11-01) 1.) Bug fix in package function 'plotcpfa' for argument '...' - Previously a bug prevented arguments from being passed forward - Now additional arguments can be passed to model fitting functions 2.) Simplified code for internal cross-validation functions - Previously some redundancies existed in error checking for internal functions - Now code has been simplified to reduce repetition 3.) Simplified code for 'print.tunecpfa' function - Previously redundant code existed in this function - Now the code has been simplified ---------------- Changes: version 1.1-5 (2024-10-01) 1.) Added new function 'plotcpfa' to plot output from function 'cpfa' - Previously 'cpfa' output did not have a method to visualize results - Now a new function fits a model based on 'cpfa' output and plots results 2.) Improved readability of function files - Previously some inconsistencies existed in line spacing - Now spacing is more consistent to improve code readability ---------------- Changes: version 1.1-4 (2024-04-26) 1.) Removed three deprecated functions - Previously functions 'tune.cpfa', 'predict.cpfa', and 'print.cpfa' remained - Now all three functions have been removed ---------------- Changes: version 1.1-3 (2024-04-07) 1.) Modified names of three functions (old functions remain available until next update) - Previously main functions were 'tune.cpfa', 'predict.cpfa', and 'print.cpfa' - Now these functions are 'tunecpfa', 'predict.tunecpfa', and 'print.tunecpfa' 2.) Added gradient boosting machine (GBM) as a classifier - Previously used five classification methods - Now adds GBM as a new classification method ---------------- Changes: version 1.1-2 (2024-02-15) 1.) Bug fix in main package function 'tune.cpfa' for argument 'nfac' - Previously bug prevented argument 'nfac' from containing multiple values - Now argument 'nfac' can contain multiple values 2.) Added a Parafac2 example to help files - Previously help files did not include a Parafac2 example - Now help files include a Parafac2 example 3.) Bug fix in main package function 'tune.cpfa' for argument 'cmode' - Previously could not match 'y' length with classification mode's number of levels - Now can match them together correctly 4.) Bug fix in main package function 'predict.cpfa' for argument 'newdata' - Previously did not specify array dimensions correctly for four-way arrays - Now specifies array dimensions correctly for four-way arrays 5.) Bug fix in main package function 'predict.cpfa' for method 'SVM' for multiclass response - Previously columns of SVM predicted probabilities matrix were ordered incorrectly - Now columns are ordered correctly, calculating correct performance measures ---------------- Changes: version 1.1-1 (2024-02-03) 1.) Added help file examples where tensor and response are related - Previously examples did not use tensors that were related to responses - Now help file examples use tensors related to responses 2.) Improved readability of function files - Previously code did not contain spaces for clear reading - Now adds spaces in function files to improve code readability ---------------- Changes: version 1.1-0 (2023-12-02) 1.) Bug fix in main package function 'tune.cpfa' - Previously a bug prevented Parafac2 models from being fit - Now Parafac2 models can be fit correctly 2.) Bug fix in internal package function 'kcv.plr' - Previously a bug prevented 'threshold' from working with 'nfolds = 2' - Now argument 'threshold' works correctly with 'nfolds = 2' ---------------- Changes: version 1.0-9 (2023-11-19) 1.) Placed tuning arguments into a list for functions 'tune.cpfa' and 'cpfa' - Previously classifier tuning arguments were separate inputs - Now combines tuning arguments in a list to improve readability 2.) Added new output to function 'cpfa' - Previously optimal tuning parameters were not provided by cpfa - Now provides optimal tuning parameters for each replication ---------------- Changes: version 1.0-8 (2023-10-15) 1.) Bug fix in internal function 'kcv.rda' for KCV error calculation - Previously provided accuracy as classification error output - Now correctly uses classification error instead of accuracy 2.) Improvements to help files for most package functions - Previously help files contained language noting four methods - Now help files correctly reference five methods, including RDA 3.) Added plotting to main package function 'cpfa' - Previously function 'cpfa' contained no plotting capabilities - Now box plots of performance measures can be produced as output ---------------- Changes: version 1.0-7 (2023-10-07) 1.) Added regularized discriminant analysis (RDA) as a classifier - Previously used four classification methods - Now adds RDA as a new classification method 2.) Added new references to help files for RDA ---------------- Changes: version 1.0-6 (2023-09-07) 1.) Added Parallel Factor Analysis-2 (Parafac2) as a component model - Previously used only Parallel Factor Analysis-1 (Parafac) - Now includes functionality for Parafac2 and for irregular tensors 2.) Added new references for Parafac2 (e.g., Harshman, 1972) ---------------- Changes: version 1.0-5 (2023-08-07) 1.) Added new function 'cpfa' as a wrapper function to implement method - Previously package functions were not united - Now new wrapper function unites package functions 2.) Improvements to help files - Previously help files contained language errors and typos - Now help files correctly use proper language ---------------- Changes: version 1.0-4 (2022-06-20) 1.) Removed package vignette due to vignette still containing key errors - Previously provided a vignette describing package use - Now removes vignette due to major errors; will add at later date ---------------- Changes: version 1.0-3 (2022-06-16) 1.) Added an updated package vignette - Previously vignette contained errors in describing method - Now fixes errors and improves presentation in vignette ---------------- Changes: version 1.0-2 (2022-05-16) 1.) Added a package vignette describing method implemented in package - Previously contained no vignette or description of method - Now adds vignette describing package capabilities ---------------- Changes: version 1.0-1 (2022-04-09) 1.) Added feed-forward neural network (NN) as a classifier - Previously used three classification methods - Now adds NN as a fourth classification method 2.) Added new references to help files for NN ---------------- Changes: version 1.0-0 (2022-03-09) 1.) Submitted to CRAN a new package called 'cpfa'