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semtree 0.9.20 (2024)

• added an error handler for score-based tests when the vcov matrix cannot be computed (e.g., models with Heywood cases)
• leaner package imports: removed dependency on bitops and stringr package
• prefer semforest_control() over semforest.control() and semtree_control() over semtree.control()
• added heuristics for choosing mtry in forests (if NULL) and for choosing min.N and min.bucket (if NULL)
• moved dependency on ctsemOMX to suggested package

semtree 0.9.19 (2023)

• changed default behavior of print function of varimp, such that na.omit=TRUE, which is consistent with other packages like party or partykit
• fixed issues with toTable()-command, by default, all parameters are shown now, also fixed a bug with score-based tests and toTable()
• fixed problem with focus-parameters and variable importance
• bugfix in score-based tests that sometimes did not respect min.N constraints
• new functionality for parameter contribution evaluation
• more verbose vignettes
• removed dependency on set, plotrix and digest package to make package imports leaner

semtree 0.9.18 (2022)

• happily welcoming Caspar van Lissa to the developer team
• more efficient implementation of partial dependence and proximity
• new predict() functions
• bugfix in handling factors with non-numeric levels
• removed crossvalidation splitting after deprecation in v0.9.15
• exporting strip() function for lighter SEM trees in forests
• introducing new classed tree_stripped and forest_stripped

semtree 0.9.16 (2021)

• removed all code based on parallel-package and replace by future-equivalent. Thanks to Michael Krause!
• restored semtree.print() generic function that was accidentally dropped in 0.9.15
• fix to score-based tests to support definition variables in OpenMx. Thanks to Manuel Arnold!

semtree 0.9.15 (2021)

• roll-out of score-based tests - use method “score” to enable
• use of method “cross-validation” is now deprecated and discouraged
• added variable importance for focus parameters
• added new vignettes
• fixed compatibility with new OpenMx version

semtree 0.9.14 (2020)

• added requirement rpart.plot > 3.0.6 to avoid error w.r.t. to missing round.int
• Manuel Arnold joined the team to work on a score-test implementation
• fixed behavior of min.N in semtree.control()
• semtree captions uses signif for truncating decision thresholds to three significant digits
• fixed class type checks to be compatible with upcoming R 4.0.0

semtree 0.9.13 (2018)

• bugfix in invariance testing
• fix to remove warning from rpart plot (version 3.0.0 and above)

semtree 0.9.12 (2018)

• bugfix in split evaluation procedure for cases where variables are named ‘c’, which crashed semtree
• bugfix in varimpConvergencePlot: na.omit command logic was inverted

semtree 0.9.11 (2017)

• semforests support for lavaan models including variable importance and partial dependence
• crossvalidated likelihood supported with lavaan
• plots of semtrees show correct #df when using focus parameters
• added diversity functions

semtree 0.9.10 (2017)

• added NEWS.md file
• bugfix to partial dependence on variables of type factor
• bugfixes to plotting of partial dependence
• deprecated partialDependencePlot and introduced partialDependence() function with S3 plotting method
• added parallel computation option to partialDependence
• added new demo scripts
• added extra.legend parameter to varimpConvergencePlot
• bugfix in traverse() that led to underestimations of variable importance in some cases
• added error message when trying to use lavaan and global constraints

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.