Changes in version 0.0.5 (2023-06-22) - added the modelZhong(), modelChondrite_lattice(), modelChondrite_Onuma() - Package description updated Changes in version 0.0.3 - Atomic number (Z) added to the elements dataset - Added the Chondrite-Onuma method - Added the Zhong et al. (2019) method. - r0 in the chondrite method now can be estimated. It is slow for big datasets. - Some functions were removed Changes in version 0.0.2 - Added model calibration Changes in version 0.0.1 (2022-07-19) - Release Version