‘stylo’ news

version 0.7.4, 2020/12/5

• option for shading in rolling.classify()
• performance.measures() greatly improved
• supervised classifiers updated, to be compliant with cross-validation
• SVM output fixed
• bugs in rolling.classify() fixed
• bugs in load.corpus() causing codepages mismatches fixed
• general code cleanup

version 0.7.3, 2020/08/11

• perfom.svm() improved to work with R >4.0.0
• oppose() not restricted anymore to have at least 2 texts per set
• better color management in rolling.classify()
• CPU performance improvements

version 0.7.2, 2020/04/20

• fixes required by CRAN to meet R >3.6.3 requirements
• CPU performance improvements
• improvements in performance.measures()
• confusion matrices fixed
• oppose() update, to allow having just one text per set

version 0.7.1, 2019/11/4

• improvements in crossv(): confusion matrix fully operational
• new funcion performance.measures(), providing recall, precision, f1, etc.
• performance measures made available via classify()
• new function size.penalize() to assess minimal sample size
• extension to the generic plot() function, to plot size.penalize() results

version 0.7.0, 2019/01/22

• Unicode (UTF-8) made the default encoding, also for Windows

version 0.6.9, 2019/01/20

• check.encoding() and change.encoding() introduced
• GUI allows for changing the working directory with one click
• metadata handling through a dedicated variable
• {Steffen Pielström joins!}

version 0.6.8, 2018/06/14

• support for JCK (Japanese-Chinese-Korean) significantly improved
• a fix for exporting networks to Gephi ver. 0.9.2
• support for rmarkdown: stylo(), classify(), oppose()

version 0.6.7, 2018/05/12

• supports the following taggers: TaKIPI (for Polish), Alpino (Dutch)
• the Imposters method reimplemented, via the new function imposters()
• fine tuning the parameters of the Imposters method via imposters.optimize()

version 0.6.6, 2018/04/13

• Cosine Delta implemented and aviable via GUI
• Min-Max distance implemented
• Entropy distance implemented

version 0.6.5, 2017/11/03

• support for interactive network visualisations via stylo.network()
• corrected Spanish pronouns
• fixes in documentation
• countless minor fixes

version 0.6.4, 2016/09/08

• citation hint updated; to see the changes type: citation(“stylo”)
• the impostors method almost implemented, see help(perform.impostors)
• confusion table for supervised classification via classify()
• a separate funtion for cross-validation, see help(crossv)
• a significant change in SVM wrapper: the procedure automatically gets rid of the variables with all 0s in the training set
• the file inst/CITATION updated to meet recent CRAN requirements
• man files for perform.delta, perform.svm etc. updated: new executable examples added, so that one can perform a supervised test without any corpus
• perform.knn(), perform.svm() etc. improved, in order to handle custom vectors of classes provided by a user
• an improved output of the oppose() function

version 0.6.3, 2015/12/20

• significant performance improvement in make.table.of.frequencies()
• PCA values (rotation, explained variance, etc.) saved in final results

version 0.6.2, 2015/11/11

• the package ‘stringi’ involved to optimize n-gram computing
• three datasets added to the package
  • data(novels), a collection of 9 novels by the Bronte sisters and Jane Austen (full text)
  • data(galbraith), a table of frequencies of 26 novels by 5 authors, including Galbraith’s “Cacoo’s Calling”
  • data(lee), a table of frequencies of 28 American novels by 8 authors, including the new novel by Harper Lee
• new version of make.table.of.frequencies(), which speeds up the tasks radically
• delete.markup(), delete.stop.words(), make.samples(), make.frequency.list(), txt.to.features(), txt.to.words.ext() remodelled so that can be applied to single texts and/or to corpora
• countless improvements in most of the functions

version 0.6.1, 2015/09/27

• UTF-8 issue in txt.to.words.ext() fixed, according to the CRAN’s request

version 0.6.0, 2015/08/17

• support for Georgian
• plot size in rolling.classify() improved
• distance measure engine thoroughly restructured
• custom distance measures allowed
• cosine distance introduced
• new functions: dist.cosine(), dist.delta(), dist.argamon(), dist.eder(), dist.simple()
• extracting POS tags via the function parse.pos.tags()

version 0.5.9-3, 2015/07/2

• support for Coptic
• customizable graphs size in rolling.classify()
• custom graph filename
• integration with CLARIN-PL stylometric infrastructure

version 0.5.9, 2015/01/30

• non-ASCII chars in the source code neutralized (required by CRAN)
• random sampling substantially improved

version 0.5.8-3, 2014/10/26

• bug fixes: options for assign.plot.colors()

version 0.5.8-2, 2014/10/19

• bug fixes: ‘start.at’ parameter in stylo()

version 0.5.8-1, 2014/09/23

• bug fixes (mostly: colors on dendrograms)

version 0.5.8, 2014/09/3

• new sequential methods available: rolling SVM, rolling NSC, and rolling Delta
• bug in load.corpus.and.parse() fixed
• bug in rolling.delta() fixed
• network related bug in stylo() neutralized
• classification procedures as separate functions: perform.delta(), perform.svm(), perform.knn(), perform.naivebayes(), perform.nsc()
• classification output enhanced
• doc files for new functions added

version 0.5.7, 2014/08/13

• culling implemented as a separate function
• custom stop words deletion: delete.stop.words()
• a thoroughly re-written oppose() to use the same tokenizing, corpus loading, sampling etc. functions as stylo() and classify()
• zeta.chisquare(), zeta.craig(), and zeta.eder() derrived as separate functions
• gui.oppose() derrived as a separate function
• distinctive words visualization in oppose() improved
• draw.polygons derrived as a separate function (hidden to the end user, though)
• cross-validation in classify() improved
• fixed bug in cross-validation for naivebayes
• a very unpleasant bug in oppose() fixed: the preferred and avoided words were calculated using the I set only
• help files significatnly improved

version 0.5.6, 2014/04/20

• support for Unicode on Windows
• support for a few non Latin scripts
• experimental support for CJK (Chinese-Japanese-Korean)
• the function txt.to.words() remodelled
• loading corpus files improved
• printing variables on screen improved
• better class inheritance
• an issue with hclust and “ward”, “ward.D” fixed
• man files extended and updated

version 0.5.5, 2014/04/03

• cross-validation in classify()
• lots of bugs fixed

version 0.5.4, 2014/02/25

• tSNE implemented
• preserve.case option
• more flexible function for splitting input text

version 0.5.3, 2014/01/2

• custom regular expressions to tokenize input texts
• support for external corpora or frequencies
• support for external set of features (e.g. frequent words)
• class “stylo.results” for formatting final results
• class “stylo.corpus” for formatting loaded corpora
• class “stylo.data” for formatting tables and vectors
• PCA coordinates piped to final results
• optional choice between relative/raw frequencies
• xml support improved (bug fixed)
• codepage bug in oppose() fixed

version 0.5.2, 2013/09/07

• CRAN-related issue with .Rbuildignore fixed
• network analysis support significantly improved
• improvements in man pages

version 0.5.1, 2013/08/07

• bug fixes, minor improvements
• different options for k-NN and SVM
• submitted to CRAN for the first time (!)

version 0.5.0-58, 2013/08/06

• batch mode improved
• several clustering algorithms available

version 0.5.0-50, 2013/07/24

• man pages revised and improved

version 0.5.0-49, 2013/07/18

• poster presentation at DH2013 (Lincoln, NE)
• minor improvements

version 0.5.0-48, 2013/06/26

• namespace issues solved
• documentation corrected (typos)

version 0.5.0-45, 2013/06/12

• arguments can be passed from command-line
• man pages cleaned and extended
• global variables abandoned
• innumerable minor improvements

version 0.5.0-43, 2013/04/31

• thousands of changes and improvements
• documentation improved and augmented
• stylo R package (un)officially released

version 0.5.0-30, 2013/04/26

• changes in names of some functions
• code cleaning, improvements, improvements, …

version 0.5.0-23, 2013/05/24

• first prototype of an R package

version 0.5.0-1, 2013/04/03

• first attempt to port the stylo script into R package

version 0.4.9-2, 3013/05/27

• code OS-independent
• minor cleaning

version 0.4.9-1, 2013/04/02

• experimental support for network analysis (output to Gephi)
• bugs fixed

version 0.4.9, 2013/03/06

• added option to dump samples for closer post-analysis inspection

version 0.4.8, 2012/12/29

• customizable plot area, font size, etc.
• thoroughly rewritten code for margins assignment
• scatterplots represented either by points, or by labels, or by both (customizable label offset)
• saving the words (features) actually used
• saving the table of actually used frequencies

version 0.4.7, 2012/11/25

• new output/input extensions: optional custom list of files to be analyzed, saving distance table(s) to external files
• support for TXM Textometrie Project
• color cluster analysis graphs (at last!)

version 0.4.6, 2012/09/09

• code revised, cleaned, bugs fixed

version 0.4.5-4, 2012/09/03

• added 2 new PCA visualization flavors

version 0.4.5-3, 2012/08/31

• new GUI written

version 0.4.5-2, 2012/08/27

• added functionality for normal sampling

version 0.4.5-1, 2012/08/22

• support for Dutch added
• {Mike Kestemont joins!}

version 0.4.5, 2012/07/07

• option for choosing corpus files
• code cleaned; bugs fixed

version 0.4.4, 2012/05/31

• the core code rewritten
• I/II set division abandoned
• GUI remodeled
• GUI tooltips added
• different input formats supported (xml etc.)
• config options loaded from external file
• the code forked into (1) the Stylo script, supporting explanatory analyses (MDS, Cons. Trees, …), (2) the Classify script for machine-learning methods (Delta, SVM, NSC, Bayes)

version 0.4.3, 2012/04/28

• feature selection (word and character n-grams)

version 0.4.2, 2012/02/10

• three ways of splitting words in English
• bugs fixed
• GUI code rearranged and simplified

version 0.4.1, 2011/06/27

• better output
• better text files uploading
• new options for culling and ranking of candidates

version 0.4.0, 2011/06/20

• the official world-premiere, at DH2011 (Stanford, CA)

version 0.3.9b, 2011/06/1

• the code simplified; minor cleaning

version 0.3.9, 2011/05/21

• uploading wordlist from external source
• thousands of improvements
• the code simplified

version 0.3.8, 2010/11/01

• skip top frequency words option added

version 0.3.7, 2010/11/01

• better graphs
• attempt at better graph layout

version 0.3.6, 2010/07/31

• more graphic options
• dozens of improvements

version 0.3.5, 2010/07/19

• module for color graphs
• module for PCA

version 0.3.4, 2010/07/12

• module for uploading corpus files improved

version 0.3.3, 2010/06/03

• the core code simplified and improved (faster!)

version 0.3.2, 2010/05/10

• reordered GUI
• minor cleaning

version 0.3.1, 2010/05/10

• the z-scores module improved

version 0.3.0, 2009/12/26

• better counter of “good guesses”
• option for randomly generated samples
• minor improvements

version 0.2.99, 2009/12/25

• platform-independent outputfile saving

version 0.2.98, 2009/12/24

• GUI thoroughly integrated with initial variables

version 0.2.10, 2009/11/28

• corrected MFW display in graph
• more analysis description in outputfile

version 0.2.9, 2009/11/22

• auto graphs for MSD and CA

version 0.2.8a, 2009/11/21

• remodeled GUI

version 0.2.8, 2009/11/20

• GUI: radiobuttons, checkbuttons

version 0.2.7, 2009/11/19

• language-determined pronoun selection

version 0.2.6, 2009/11/18

• dialog box (GUI)
• {Jan Rybicki joins!}

version 0.2.5, 2009/11/16

• module for different distance measures
• thousands of improvements (I/O, interface, etc.)

version 0.2.2, 2009/10/25

• numerous little improvements
• deleting pronouns

version 0.2.1, 2009/08/23

• module for culling
• module for bootstrapping

version 0.2.0, 2009/08/23

• module for uploading plain text files

version 0.1.9, 2009/08/1

• innumerable improvements
• the code simplified
• {this version was completed on a train from Leipzig to Krakow (a looong trip…), after a very successful R course taught by Stefen Gries at ESU “C&T”, Leipzig, Germany (26-31/08/2009)}

version 0.1.4, 2009/07/19

• loop for different MFW settings

version 0.0.1, 2009/07/01

• some bash and awk scripts translated into R