Changes in version 1.1.0 (2026-03-03) New Features - Adds functions and documentation for computing attrition for cohorts and subsetted cohorts (#123, #79) Changes in version 1.0.2 (2026-02-10) Bug Fixes - Fix bug where negate parameter of createCohortSubsetOperator was not passed properly to the SQL statement (#264) - Fix deprecation messages (#263) - Fix issue with unboxing nulls (#262) Changes in version 1.0.1 (2025-11-17) Bug Fixes - Remove calls to lifecycle and add unit tests Changes in version 1.0.0 (2025-11-12) New Features - SQL cohorts as first class citizens - SQL templates for non-standard cohorts or large, bulk operations (#133, #247) - Remove file-based incremental operations. Creation of database cohort_checksum tables that enables verification of generated cohorts and incremental execution in distributed environments (#206, #131, #254) - Abbreviated logging for cohorts already generated (#113) - Added maximumChortDuration to the LimitSubset operator (#240) - Added "recipe" functions for creating indication and restriction subsets (#209) - Deprecate subset operator function names and add operator suffix (#233) - Removes default 'print friendly' long text of subgroup names (#135, #231) - Add pretty print to subset definitions that includes SQL and logic definitions (#218) Bug Fixes - Limit subset operator produces broken SQL if R date of length 0 is passed instead of NULL (#252) - Remove warning around finalize (#242) Changes in version 0.12.2 (2025-09-11) - Updates unit tests to use lowercase field names (#237) Changes in version 0.12.1 (2025-09-05) Bug Fixes - Fix logical issue with null minimum cohort duration Changes in version 0.12.0 (2025-07-31) New Features - Backwards compatible extension to CohortSubsetOperators and cohortSubsetWindows to allow windowing to be logic of any length - Include observation table when creating negative control cohorts (#198) - Improvements to cohort subset documentation (#199) - Add negate parameter to createSubsetCohortWindow function (#217) Bug Fixes - Remove RJSONIO from dependency list (#202) - Upgrade GitHub Actions to use Ubuntu 22.04 (#204) - Add missing database_id as primary key of cg_cohort_censor_stats (#215) - saveIncremental prevents saving empty files (#212) - Subset identifier expressions are not deserialized (#225) Changes in version 0.11.2 (2024-09-30) - Ensure temp tables are dropped before creating them (#188) Changes in version 0.11.1 (2024-09-15) - CohortGenerator added to CRAN (#77) Changes in version 0.11.0 New Features - Add support for minimum cell count (#176) Bug Fixes - Multiple calls to export stats causing duplicates in cohort inclusion file (#179) - Updates to subset documentation (#180, #181) - Negative control outcome generation bug (#177) Changes in version 0.10.0 New Features - Add runCohortGeneration function (Issue #165) - Adopt ResultModelManager for handling results data models & uploading. Extend results data model to include information on cohort subsets(#154, #162) - Remove REMOTES entries for CirceR and Eunomia which are now in CRAN (#145) - Unit tests now running on all OHDSI DB Platforms (#151) Bug Fixes - Negation of cohort subset operator must join on subject_id AND start_date (#167) - Allow integer as cohort ID (#146) - Use native messaging functions for output vs. ParallelLogger (#97) - Prevent upload of inclusion rule information (#78) - Expose colTypes when working with .csv files (#59) - Remove bit64 from package (mostly) (#152) - Updated documentation for cohort subset negate feature (#111) Changes in version 0.9.0 - Random sample functionality (for development only) (Issue #129) - Incremental mode for negative control cohort generation (Issue #137) - Fixes getCohortCounts() if cohortIds is not specified, but cohortDefinitionSet is. (Issue #136) - Add cohort ID to generation output messages (Issue #132) - Add databaseId to output of getStatsTable() (Issue #116) - Prevent duplicate cohort IDs in cohortDefinitionSet (Issue #130) - Fix cohort stats query for Oracle (Issue #143) - Ensure databaseId applied to all returned cohort counts (Issue #144) - Preserve backwards compatibility if cohort sample table is not in the list of cohort table names (Issue #147) Changes in version 0.8.1 - Include cohorts with 0 people in cohort counts (Issue #91). - Use numeric for cohort ID (Issue #98) - Allow big ints for target pairs (#103) - Pass tempEmulationSchema when creating negative control cohorts (#104) - Target CDM v5.4 for unit tests (#119) - Fix for subset references (#115) - Allow for subset cohort name templating (#118) - Allow all entries with limit operator and do not require > 0 days follow up (#112) Changes in version 0.8.0 - New feature: cohort subsetting (Issue #67). - Removes the evaluation of ROhdsiWebApi code in vignettes (Issue #70) - Basic tests for different database platforms (#71) Changes in version 0.7.0 - Fixes data type issue for Google Big Query (Issue #51). - Removes the databaseId field from the cohort inclusion table (Issue #52) - Adds the ability to generate negative control outcome cohorts for use in population-level estimation. (Issue #9) Changes in version 0.6.0 - Add more flexibility when reading/writing CSV files including appending (Issue #44), flags for disabling warnings (Issue #38) and removing unhelpful warnings (Issue #43). - Added better error handling to saveCohortDefinitionSet (Issue #25) - Add better handling of column name casing in CSV files that hold cohort settings. (Issue #37) - Added functions to check if a data.frame conforms to a cohortDefinitionSet (Issue #21) Changes in version 0.5.0 - Allow for specification of the database_id in export methods. (Issue #18) - getCohortStats function allows for exporting cohort statistics into data frames (Pull Request #24) - Add utility methods for reading/writing CSV files. (Issue #16) Changes in version 0.4.0 - Update dependency versions in DESCRIPTION to resolve issues when using older versions of readr/stringi. (Issue #13) - Breaking change: change the defaults for saving/getting a cohortDefinitionSet to/from the file system. (Issue #16) - getCohortCounts now supports an optional parameter cohortDefinitionSet which will join the cohort counts with the cohort definition set when desired (Issue #14) Changes in version 0.3.0 - Added getCohortDefintionSet function for retrieving a cohort definition set from either a package or the file system - Re-factored saveCohortDefinitionSet to remove the settingsFolder. The settingsFileName should include the path to the file. - Bug fixes Changes in version 0.2.0 - Renamed createCohortTable to createCohortTables to include all cohort statistics tables - Renamed createEmptyCohortSet to createEmptyCohortDefinitionSet to make this consistent with ROhdsiWebApi and CohortDiagnostics - Added dropCohortStatsTables function for removing cohort statistics tables - Added exportCohortStatsTables function for exporting cohort statistics to CSV files - Added getCohortTableNames function to define the list of cohort table names to create - Added insertInclusionRuleNames for inserting the inclusion rule names into the cohort stats table - Added saveCohortDefinitionSet to save the cohort definition set to the file system for use by study packages - Added a vignette and updated documentation - Remove CirceR dependency and related functions Changes in version 0.1.1 Fixing documentation Changes in version 0.1.0 Updating function calls to use "generate" instead of "instantiate" Changes in version 0.0.1 Initial version