Changes in version 2026.3.19.9000                    

  - New data has been added.

               Changes in version 2026.3.19 (2026-03-19)                

  - power_r, power_lm(), print.Keng_power(), and plot.Keng_power() have
    been rewritten using uniroot().

                      Changes in version 2026.1.5                       

  - Scale() has been rewritten.
  - divide() has been added to divide a vector into three groups.

               Changes in version 2025.10.8 (2025-10-09)                

  - The bug of length(...) has been fixed.
  - powered_r() and powered_lm() are used to compute powers, and
    power_r() and power_lm() have been rewritten.

                Changes in version 2025.9.1 (2025-08-31)                

  - The codes for pick_* tools have been refined.
  - assess_coa() has been added to assess course objective achievement
    in Outcome-Based Education.

               Changes in version 2025.8.16 (2025-08-20)                

  - pick_sl() and pick_dcb() have been added to randomly pick numbers
    for Chinese Super Lotto and Double Color Balls.

                     Changes in version 2025.02.05                      

  - Some spelling errors have been corrected.

               Changes in version 2024.12.15 (2024-12-15)               

  - power_r() has been added to conduct post-hoc and a priori power
    analysis, and plan the sample size for Pearson's r.
  - power_lm() has reorganized its output.
  - power_r() and power_lm() return the Keng_power class, which has
    print() and plot() methods.

               Changes in version 2024.11.25 (2024-11-24)               

  - test_r() has added Fisher's z.
  - compare_lm() has added f_squared and post-hoc power.
  - calc_PRE() has been added to calculate PRE from partial correlation,
    Cohen's f, or f_squared.
  - power_lm() has been added to conduct post-hoc and a priori power
    analysis, and plan the sample size for one or a set of predictors in
    linear regression.

               Changes in version 2024.11.17 (2024-11-17)               

  - Added a NEWS.md file to track changes to the package.
  - Dataset depress is added.
  - Format of compare_lm()'s output is reorganized.
  - Versatile Scale() is added.