Movatterモバイル変換

arules 1.7-11 (05/28/2025)

Changes

• dissimilarity(): The parameter which is now replaced with thelogical items.
• dissimilarity(): Added cross-dissimilarity calculation for Euclideandistances. Dissimilarities are now computed on the sparse itemMatrixobjects and tests were added.
• We use now the built-in R_chk_memcpy and R_chk_memset.

arules 1.7-10 (04/22/2025)

Changes

• Improved documentation for apriori and eclat. Make clear that alogical matrix is needed.

Bug Fix

• R 4.5.0 changes the pointers for 0-length objects which isproblematic with older implementations of memcpy and some sanitizers. Iadded the solution used in r-lib/rlang provided by aitap(https://github.com/r-lib/rlang/pull/1797). The bug was originallyreported by MichaelChirico.

arules 1.7-9 (12/14/2024)

Internal Changes

• C code: Legacy variable length arrays in structs use now C99 syntaxso that UBSAN’s static analysis does not report a non-existingout-of-bounds violation.

arules 1.7-8 (08/21/2024)

Changes

• Updated tests for testthat edition 3.

Internal Changes

• Disable internal ngCMatrix subsetting code which has issues withR-devel. We use now subsetting provided by package Matrix which isalmost as fast.
• Disable internal code for rowSums and colSums for ngCMatrix.
• Internal code for t for ngCMatrix is now only used internally.
• The custom code and the exported symbols are now deprecated and willbe removed in the next major release.

Bugfixes

• Fixed ‘Error in .basicRuleMeasure(..) unused argument (complement =TRUE)’ reported by bachnguyen-tomo.
• Added package anchors in man pages for ngCMatrix-class.

arules 1.7-7 (11/28/2023)

Changes

• is.significant gained parameter reuse. The default for adjust waschanged to “none.”
• improved some error messages.
• Added Wikipedia links to measures.md.
• Added interest measure LIC.

Bugfixes

• Fixed appearance code for fim4r (reported by mytarmail).

arules 1.7-6 (03/23/2023)

Changes

• Improved the interface for fim4r. support and confidence now uses[0, 1]; added verbose and originalSupport.

Bugfixes

• eclat and apriori now use the next smaller representable double forminsupp to make sure that >= minsupp works.

arules 1.7-5 (10/20/2022)

Bugfixes

• discretize(): dig.lab is now correctly passed on to cut() (reportedby LectronPusher).
• Fixed C prototype warnings

arules 1.7-4 (8/16/2022)

Changes

• We install now the latest version of fim4r
• Changes in coercion for Matrix 1.4-2

Bugfixes

• eclat() now correctly returns frequent itemsets when all haveexactly minsupport (reported by GauthierMagnin).

arules 1.7-3 (1/9/2022)

Changes

• Manual pages are now created using roxygen2.
• support() uses now explicit arguments instead of control.
• ruleInduction() uses now explicit arguments instead of control.

New Feature

• Added interface to fim4r algorithms.

arules 1.7-2 (12/09/2021)

New Feature

• The C APRIORI implementation can now mine frequent generatoritemsets (contributed by Makh2018).

Bugfixes

• deparse1() needs R 4.0.0

arules 1.7-1 (11/18/2021)

Bugfixes

• Fixed some C issues: unsigned int in bitmat.c (function static int_exists) to ensure bit shifting works. The bitmap support buffer is nowinitialized with zeros.

arules 1.7-0 (11/12/2021)

New Feature

• Constructors and conversion
  • constructor transactions() can now also create transactions fromdata in long format (tid, item).
  • rules and itemsets have now a constructor.
  • toLongFormat converts transactions into a long formatdata.frame.
• Interest measures
  • interestMeasure for rules has now measure “table” which returns thecontingency table.
  • new interest measure “riskRatio” was added.
  • interestMeasure for contingency table-based measures now accept theadditional parameter smoothCounts which is added to each count to avoidcounts of zero (Laplace smoothing).
  • new method for stats confint to calculate confidence intervals forsome interest measures added.
  • is_redundant can now also use confidence intervals to determinestatistical redundancy.
  • removed option “chiSquared” from crossTable.
• Mining algorithms
  • apriori and eclat gain … additional arguments are now added to theparameter list.
  • added new function is.generators to find itemset generators.
  • apriori and eclat now store the call in the info slot of the createdassociations.

Changes

• we use now a better check for installed suggested packages.
• inspect uses now a space after the comma.
• interestMeasures: reuse = TRUE now only reuses the basic measures of“support”, “confidence”, “coverage” and “lift”. All other measures arerecalculated to account for possible differences in additionalparameters.
• set methods are now also exported as S3 methods using packagegenerics so they do not conflict with tidyverse (dplyr).

Bug Fixes

• fixed mistake in man page for weclat. Weight column needs to becalled weight (reported by Alexander Ruth).
• frequent itemsets now do not report “transIdenticalToItemsets”(reported by galadrielbriere).
• fixed read.transactions reading in single format with header from aconnection. First item is no longer dropped.

arules 1.6-8 (05/17/2021)

New Feature

• transactions have now a constructor function calledtransactions().
• Added new method compatible() to itemMatrix to check if the itemcoding is compatible between two objects.
• c() now produces a warning if two itemMatrices with differentitemCoding are combined.
• encode and recode accept now for itemLabels also objects with anitemLabels method.
• recode is now also available for associations (itemsets andrules).

Changes

• recode: parameter match is now deprecated. Use itemLabels

Bug Fixes

• fixed addAggregate problem with character (reported byjaviercoh).

arules 1.6-7 (03/12/2021)

New Features

• Added interest measure confidence boost (boost) with help from JensHarbers, Cordes & Graefe KG.

Bug Fixes

• interest measure improvement now does not produce inf values if nosubset rule can be found.

arules 1.6-6 (05/14/2020)

New Features

• added interestMeasure rhsSupport.
• added interestMeasure stdLift.
• addComplement now adds variables and levels to indicate what itemsare complments.

Changes

• apriori and eclat now by default also reports coverage (ext defaultsto TRUE and lhs.support is now called coverage).
• addComplement now adds variables and levels itemInfo.
• discretize now drops non-unique breaks with a warning (instead ofproducing an error).

Bug Fixes

• DATAFRAME now works if itemsetInfo is empty.
• interestMeasure hyperlift now works without specifyingtransactions.
• Changed c() to as.integer() for factors (R has changed).

arules 1.6-5 (04/03/2020)

New Features

• improved speed for calculating interestMeasures for rules anditemsets with no available quality information or reuse = FALSE.
• Manual pages for associations were improved with examples foritemCoding.
• Manual page for interestMeasures is now linked with the associatedweb page.
• interest measure laplace (Laplace confidence) gained parameter k forthe number of classes.

Bug Fixes

• read.transactions: Parameter encoding is now correctly passed on toscan (reported by Sisi-Wiciel).
• interestMeasure was not calculating count for itemsets (reported byclcazer).
• removed the duplicated interest measure: “descriptiveConfirm” use“confirmedConfidence” instead.

arules 1.6-4 (08/27/2019)

Bug Fixes

• Fixed rounding bug affecting is.closed (reported by clcazer).
• Fixed TYPO in Ralambondrainy Measure (reported by andreijl).

arules 1.6-3 (03/06/2019)

New Features

• read.transactions gained parameter header to read files with columnheaders.

Bug Fixes

• Fixed PROTECT placement in C code discovered by rchk.
• S4 objects use now show instead of print.

arules 1.6-2 (12/02/2018)

New Features

• discretizeDF now understands the method “none” which skipsdiscretization.
• discretizeDF now reports which column produces the problem.

Changes

• transactions: numeric columns are now discretized during coercionusing discretizeDF (with a warning).

Bug Fixes

• The spurious warning for reaching maxlen in apriori is now removed(reported by Ryan J. Cole).
• Fixed matrix check in function dissimilarity.

arules 1.6-1 (04/04/2018)

Bug Fixes

• discretize now handles NAs in equal frequency (reported byyarik1988).
• interestMeasure: fixed error when an itemset/rules object of length0 is provided.

New Features

• rules and itemsets gained a method for nitems.

arules 1.6-0 (2/28/2018)

Major Changes

• discretize: the default method is now “frequency” and categories wasrenamed breaks to be consistent with cut in R-base.

New Features

• Added interest measure “importance”.
• Added method items for transactions.
• Added discretizeDF to apply discretization to all numeric columns ina data.frame.

Bug Fixes

• Fixed typo in inspect for tidLists (reported by CarlosChavarria).
• Fixed bug in %in% for itemMatrix (reported by Henrique Lemos)

arules 1.5-5 (01/09/2018)

New Features

• Added (absolute support) “count” as an interest measure.
• itemLabels can now be assigned for rules and itemsets.

Bug Fixes

• Fixed bug in subset with signature itemMatrix, itemMatrix (reportedby rwdvc).
• Fixed pointer punning warning.

arules 1.5-4 (10/12/2017)

New Features

• Improved speed for read.transactions with format = “single”significantly.
• Appearance for apriori now guesses the default parameterautomatically and does some more checking, making the specification oftemplates easier.

Bug Fixes

• Fixed null pointer in error message code.
• head does now not result in an error for empty rule sets (bugreported by cornejom).

arules 1.5-3 (08/31/2017)

New Features

• apriori and eclat return now count (absolute support count) in thequality data.frame.
• Added %oin% to find transactions/itemsets that ONLY contain certainitems.

Bug Fixes

• Improved PROTECT placement in C source code.
• itemMeasures for single rules/itemsets now returns a properdata.frame (reported by lordbitin).
• itemMeasures: Added missing parentheses in kappa calculation andfixed equation for least contradiction (reported by Feng Chen).

arules 1.5-2 (03/12/2017)

New Features

• apriori: maxtime = 0 disables the time limit.
• is.subset/is.superset uses now fast and memory efficient C code forsparse computation (contributed by Ian Johnson). sparse = TRUE is nowthe default. Note that the result is now a sparse matrix.

arules 1.5-1 (01/23/2017)

New Features

• Added interest measure maxConf.
• is.significant now supports in addition to Fisher’s exact test, thechi-squared test.
• interest measures Fisher’s exact test and chi-squared (usingsignificance = TRUE) can now produce p-values for substitutes (withcomplements = FALSE).
• Added function DATAFRAME for more control over coercion todata.frame (e.g., use separate columns for LHS and RHS of rules).

Bug Fixes

• Error message for sorting with an unknown interest measure.
• abbreviate works now for rules correctly.

Internal Changes

• Added registration code for native routines. This requires R3.3.2.

arules 1.5-0 (09/23/2016)

Major Changes

• apriori uses now a time limit set in the parameter list withmaxtime. The default is 5 seconds. Running out of time or maxlen resultsin a warning. The warning for low absolute support was removed.

Bug Fixes

• is.redundant now also marks rules with the same confidence asredundant.
• plot for associations and transactions produces now a bettererror/warning message.
• improved argument check for %pin%. Warns now for multiple patterns(was an error) and give an error for empty pattern.
• inspect prints now consistently the index of rules/itemsets usingbrackets and starting from 1.

arules 1.4-2 (08/06/2016)

Bug Fixes

• is.redundant returned !is.redundant (reported by brisbia)
• Duplicate items when coercing from list to transactions are nowremoved with a warning.

arules 1.4-1 (04/10/2016)

New Features

• added tail method for associations.
• added/fixed encoding for read.transactions

Bug Fixes

• Mutual information is now calculated correctly (reported byddessommes).

arules 1.4-0 (03/18/2016)

New Features

• The transaction class lost slot transactionInfo (we use theitemsetInfo slot now). Note that you may have to rebuild sometransaction sets if you are using transactionInfo.
• interestMeasure: performance improvement for “improvement”measure.
• sort: speed up sort by always sorting NAs last.
• head: added method head for associations for getting the best rulesaccording to an interest measure faster than sorting all theassociations first.
• abbreviate is now a S4 generic with S4 methods.

Bug Fixes

• combining item matrices with 0 rows (reported by C. Buchta).
• itemLabel recoding in is.subset (reported by sjain777).
• NAMESPACE export for %in%
• is.redundant: fixed and performance improvement.
• Groceries: fixed typo in dataset.

arules 1.3-1 (12/13/2015)

Major Changes

• we now require R 3.2.0 so cbind in Matrix works.

New Features

• is.maximal is now also available for rules.
• added is.significant for rules (uses Fishers exact test withcorrection).
• added is.redundant for rules.
• added support for multi-level analysis (aggregate).
• APparameter: confidence shows now NA for frequent itemsets.

arules 1.3-0 (11/11/2015)

New Features

• removed deprecated WRITE and SORT functions.
• subset extraction: added checks, handles now NAs and recycles forlogical.
• read.transactions gained arguments skip and quote and some defaultsfor read and write (uses now quotes and no rownames by default) havechanged.
• itemMatrix: coercion from matrix checks now for 0-1 matrix with awarning.
• APRIORI and ECLAT report now absolute minimum support.
• APRIORI: out-of-memory while rule building does now result in anerror and not a memory fault.
• aggregate uses now ‘by’ instead of ‘itemLabels’ to conform toaggregate in base.

Bug Fixes

• ruleInduction: bug fix for missing confidence values and betterchecking (by C. Buchta).

arules 1.2-1 (09/20/2015)

New Features

• Added many new interest measures.
• interestMeasure: the formal argument method is now called measure(method is now deprecated).
• Added Mushroom dataset.
• Moved abbreviate from arulesViz to arules.

Bug Fixes

• fixed undefined behavior for left shift in reclat.c (reported by B.Ripley)

arules 1.2-0 (09/14/2015)

Major Changes

• added support for weighted association rule mining (by C. Buchta):
  • transactions can store weights a column called “weight” intransactionInfo.
  • support, itemFrequency and itemFrequencyPlot gained a parametercalled weighted.
  • weclat extends eclat with transaction weights.
  • hits can be used to calculate weights from transact ions.
• We are transitioning to internally use consistently data.frames withthe correct number of rows for quality, itemInfo, transactionInfo anditemsetInfo. These data.frames possibly have 0 columns.
• arules uses now testthat (tests are in tests/testthat).

New Features

• sort can now sort by several columns (used to break ties) inquality. It also gained an order parameter to return a permutationvector (order) instead.
• inspect gained parameters setStart, setEnd, itemSep, ruleSep andlinebreak to control output better.
• read.transactions now ignores empty items (e.g., caused by trailingcommas and leading or trailing white spaces).
• labels now returns not a list but consistent labels forobjects
  (transactions, itemMatrix, rules, itemsets, and tidLists).
• tidLists has now an inspect method, gained coercion from “list”, andhas now a replacement method for dimnames().
• Coercion from itemMatrix to matrix results now in a logicalmatrix.
• fixed as(transactions, “data.frame”). The column names do now haveno prefix (except if transactionInfo contains an item called“items”).
• transactions has now its own dimnames function which correctlyreturns transactionID from transactionInfo as rownames.
• replacement method for dimnames() checks now dimensions.
• item labels are now internally handled as character usingstringAsFactor = FALSE in data.frames and not AsIs withI(character).
• rules can now have no item in the RHS.

Bug Fixes

• fixed missing row labels for is.subset().

arules 1.1-9 (7/13/2015)

• More work on namespace.
• Fixed tests.

arules 1.1-7 (6/29/2015)

• itemUnion: fixed bug for large amounts of dense rules.
• crossTable gained arguments measure and sort.
• Fixed namespace imports for non-base default packages.

arules 1.1-6 (12/07/2014)

• dissimilarity method “pearson” is now set to 1 (max) for neg.correlation. Also added phi correlation coefficient.
• discretize method “cluster” accepts now … passed on to k-means(e.g., for nstart)
• merge for itemMatrix checks now for conformity
• as(…, “transactions”): binary attributes are now translated intoitems only if TRUE.

arules 1.1-5 (8/19/2014)

• Import drop0 from Matrix

arules 1.1-4 (7/25/2014)

• C code: fixed problem in error message generation in apriori andeclat (this fixes the trio library problem under Windows)
• C code: rapriori uses now STRING_ELT to be compatible with TERR(TIBCO)
• C code: removed some unused variables.

arules 1.1-3 (6/17/2014)

• Fixed dependency on XML and pmml
• the interest measure chi-squared does now also report p-values (withsignificance=TRUE)
• interestMeasure calculation checks now better for missingtransactions
• interestMeasure consistently returns now NA if not defined for acertain rule

arules 1.1-2 (2/21/2014)

• discretize gained the parameter ordered.
• itemwise set operations itemUnion, itemSetdiff and itemIntersectadded.
• validObject checks now rules more thoroughly
• aggregate removes duplicate items from the lhs

arules 1.1-1 (1/16/2014)

• is.superset/is.subset now makes sure that the two arguments conformusing recode (number and order of items)
• is.superset/is.subset returns now a matrix with appropriatedimnames
• bug fix: fixed dimname bug in as(…, “dgCMatrix”) for tidLists
• image: labels are now passed on correctly.
• tidLists has now c().

arules 1.1-0 (12/10/2013)

• bug fix: reuse in now passed on correctly in interestMeasures (bugreported by Ying Leung)
• direct coercions from and to dgCMatrix is no longer supported usengCMatrix instead
• coercion from ngCMatrix to itemMatrix and transactions is nowpossible
• C code: fixed misaligned address on 64-bit systems

arules 1.0-15 (9/6/2013)

• service release

arules 1.0-14 (5/24/2013)

• discretize handles now NAs correctly
• bug fix in is.subset

arules 1.0-13 (4/7/2013)

• transactions: coercion form data.frame now handles logicalautomatically.
• discretize replaces categorize and offers several additionalmethods

arules 1.0-12 (11/28/2012)

• Added read and write for PMML.
• ‘WRITE’ is now deprecated, use ‘write’ instead
• C code: Added a copy of the C subscript code from R for betterperformance and compatibility with arulesSequences

arules 1.0-11 (11/19/2012)

• Fixed vignette.
• Internal Changes for dimnames and subsetting

arules 1.0-9 and 1.0-10(9/3/2012)

• Added PACKAGE argument to C calls.
• C code: Added C routine symbols to NAMESPACE for arulesSequence

arules 1.0-8 (8/23/2012)

• fixed memory problem in eclat with tidLists=TRUE
• added supportedTransactions()
• is.subset/is.superset can not return a sparse matrix
• added support to categorize continuous variables.

arules 1.0-7 (11/4/2011)

• minor fixes (removed factor in dimnames for itemMatrix, warning inWRITE)
• read.transactions now accepts column names to specify user and itemcolumns (by F. Leisch)

arules 1.0-0 (3/24/2009)

• Initial stable release version

arules 0.1-0 (4/15/2005)

• Alpha and beta versions