NEWS

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cohorts 1.3.0 (2026-07-09)

• Rewrote the core cohort_table_* functions, as well as cohort_table_pct(), shift_left(), and shift_left_pct(), using data.table for substantially faster performance on large event data.
• Dropped the dtplyr, tidyr, zoo, and dplyr dependencies.

cohorts 1.2.0

• Added functions for exploring cohorts on week and year levels

cohorts 1.1.0

• Corrected small error in main functions

cohorts 1.0.0 (2021-07-08)

• Added core functions to the package.