A bug was fixed where the model failed if no predictors were included in the model (thanks to Gabe Gershenfeld for the find).
The Windows build configuration was updated.
Some files were synced with the C50 package.
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.
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
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
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
statements were removed or redefined.
A bug was fixed for the
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
object$usage. The package vignette and help files were
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).