Version: 2.2 Date: 2017-05-05 Category: MAJOR IMPORVEMENTS Text: OneR: massive speedup of main OneR function (> 30 times faster). Version: 2.2 Date: 2017-05-05 Category: MAJOR IMPORVEMENTS Text: OneR & optbin: standard S3 method interface added for formulas and data frames. Version: 2.2 Date: 2017-05-05 Category: MINOR IMPROVEMENTS Text: optbin: speedup of method "infogain". Version: 2.2 Date: 2017-05-05 Category: MINOR IMPROVEMENTS Text: Some minor corrections in documentation. Version: 2.1 Date: 2016-10-24 Category: NEW FEATURES Text: eval_model: all instances of "prediction" and "actual" are now being printed in the confusion matrices. Two new arguments were added: "dimnames" for the printed dimnames of the confusion matrices and "zero.print" specifying how zeros should be printed; for sparse confusion matrices, using "." can produce more readable results. A new performance measure "error rate reduction versus the base rate accuracy" was added together with a p-value. Version: 2.1 Date: 2016-10-24 Category: MINOR IMPROVEMENTS Text: Some minor corrections in documentation. Version: 2.1 Date: 2016-10-24 Category: MINOR IMPROVEMENTS Text: Some streamlining and consolidation of code for better maintenance. Version: 2.0 Date: 2016-08-12 Category: NEW FEATURES Text: Added a vignette. Version: 2.0 Date: 2016-08-12 Category: NEW FEATURES Text: breastcancer: Breast Cancer Wisconsin Original Data Set now included in the package. Version: 2.0 Date: 2016-08-12 Category: NEW FEATURES Text: predict: new type "prob" which gives a matrix whose columns are the probability of the first, second, etc. class. Version: 2.0 Date: 2016-08-12 Category: NEW FEATURES Text: optbin: new method "infogain" (information gain) which is an entropy based method to determine the cutpoints which make the resulting bins as pure as possible. Version: 2.0 Date: 2016-08-12 Category: NEW FEATURES Text: OneR, optbin, maxlevels: consistent handling of unused factor levels (e.g. due to subsetting) was added. These are dropped for analysis and a warning is given. Version: 2.0 Date: 2016-08-12 Category: MINOR IMPROVEMENTS Text: bin & optbin: in case of removing instances due to missing values the resulting warning gives the number of removed instances. Version: 2.0 Date: 2016-08-12 Category: MINOR IMPROVEMENTS Text: maxlevels: with data containing missing values an unhelpful warning was given. Version: 2.0 Date: 2016-08-12 Category: MINOR IMPROVEMENTS Text: predict: numerical values that are smaller or bigger than model limits are now transformed into (-Inf, min] or (max, Inf] respectively. Version: 2.0 Date: 2016-08-12 Category: MINOR IMPROVEMENTS Text: predict: output of type "class" is a factor now. Version: 2.0 Date: 2016-08-12 Category: MINOR IMPROVEMENTS Text: Some streamlining and consolidation of code for better maintenance. Version: 2.0 Date: 2016-08-12 Category: BUGFIXES Text: bin & optbin: in some borderline cases when the function addNA was used in preprocessing print.OneR stopped with an error. Version: 1.3 Date: 2016-07-22 Category: NEW FEATURES Text: bin: new method "clusters", which determines the bins according to automatically determined clusters in the data. Version: 1.3 Date: 2016-07-22 Category: NEW FEATURES Text: OneR: a new element "call" with the specified arguments of the actual function call was added to the internal class structure of OneR objects. Version: 1.3 Date: 2016-07-22 Category: NEW FEATURES Text: print & summary: the function call with the specified arguments which was used to build the model is printed first. Version: 1.3 Date: 2016-07-22 Category: MINOR IMPROVEMENTS Text: bin & optbin: in cases where there were missing values and already a factor level "NA" the functions gave an unhelpful warning. Version: 1.3 Date: 2016-07-22 Category: MINOR IMPROVEMENTS Text: eval_model: added warning when actual contains missing values. Version: 1.3 Date: 2016-07-22 Category: MINOR IMPROVEMENTS Text: eval_model: added "Confusion matrix" to printout for clarity. Version: 1.3 Date: 2016-07-22 Category: MINOR IMPROVEMENTS Text: Extension of and minor corrections in documentation Version: 1.3 Date: 2016-07-22 Category: MINOR IMPROVEMENTS Text: Some minor streamlining of code. Version: 1.3 Date: 2016-07-22 Category: BUGFIXES Text: predict: the combination of intervals and "NA"s caused an error. Version: 1.3 Date: 2016-07-22 Category: BUGFIXES Text: bin: the method "content" stopped with an error in case of missing values. Version: 1.3 Date: 2016-07-22 Category: BUGFIXES Text: optbin: the method "logreg" stopped in some borderline cases with missing values with an error. Version: 1.3 Date: 2016-07-22 Category: BUGFIXES Text: optbin: some borderline cases could result in a "breaks are not unique" error. Version: 1.3 Date: 2016-07-22 Category: BUGFIXES Text: OneR: in some borderline cases with very large datasets the numbering of printed ranks (verbose = TRUE) could be wrong due to rounding errors. Version: 1.2 Date: 2016-06-20 Category: Initial release on CRAN Text: