Performs a goodness-of-fit test for Weibull distribution (weibullness test) and provides the parameter estimates of the two- and three-parameter Weibull distributions. Note that the threshold parameter is estimated based on the correlation from the Weibull plot. For more details, see <doi:10.23055/ijietap.2017.24.4.2848>, <doi:10.1155/2018/6056975>, and <doi:10.3390/math11143156>. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2022R1A2C1091319, RS-2023-00242528).