C50 0.4.0

• Build configuration changes for Windows

C50 0.3.0

• Build configuration changes for Windows

C50 0.2.4

• Maintenance release to fix CRAN issues by adding rmarkdown to Suggests.

• Re-wrote parts of the vignettes and added another for model tuning.

C50 0.2.3

• Maintenance release to fix CRAN issues for GCC 10 -fno-common flag.

• tidy_rules() was removed since the code is now in the tidyrules package.

• Changes to better work with tibble inputs.

C50 0.2.2

• Maintenance release to fix CRAN issues for C string buffers

C50 0.2.1

• Fixed a bug in the code that escapes improper characters.

C50 0.2.0

• Converted documentation to roxygen2.

• Revised some compiler options to reduce R CMD check warnings.

C50 0.0.19

• A bug was fixed, found by Duncan Murdoch.
• A bug in predictions when sampling was used was fixed by Laurae (a random data witch/magician)

C50 0.0.17

• Memory allocation bugs in the R version of the C code, which lead to segmentation faults, were fixed.

C50 0.0.15

• A bug was fixed where the model failed if no predictors were included in the model (thanks to Gabe Gershenfeld for the find).

C50 0.0.14

• The Windows build configuration was updated.

• Some files were synced with the C50 package.

C50 0.0.13

• More efficient code was borrowed from the C50 package to write the data file to a string.

• A bug related to column names found by David Clifford was fixed.

C50 0.0.12

• A bug was fixed that occurred when splits were determined in models with a categorical variable involving more than two categories (eg. “if X4 in {a, b}”)

• Also, a bug was found in the variable importances calculations when a variable was used only in the conditions and not the model.

• The ‘doc’ directory was moved into the “vignettes” directory

C50 0.0.11

• cubist uses a string buffer to capture the output files that would normally get saved to external files. The package was failing R CMD check only on windows because the output files were getting garbled. s*printf functions work differently on Windows. On Linux, they return the size that is needed to correctly print the string. On Windows, if there isn’t enough space, they return -1.

• Also, work-arounds were added to the C sources because of R CMD check issues. printf(), assert() and exist() statements were removed or redefined.

C50 0.0.8

• A bug was fixed for the coef method.

C50 0.0.6

• The GPL version was revised to be version 3 (thanks to Ross Quinlan for the note).

• The variable usage statistics were saved to a data frame in called object$usage. The package vignette and help files were updated accordingly.

• When using cubist, if x was a vector or a single variable, an error occurred. This was fixed.

• The vignette was also expanded to show how caret can be used to tune the model and a technical error was corrected about the boosting algorithm (thanks again to Ross Quinlan).