I just started my research career, and I may have made a mistake in the Supporting Information part of one of my papers. Any advice would be greatly appreciated.
Long story short: I published two papers, and they are all about mathematical modeling. For the first paper, I put the detailed model setup and parameters in the supporting information. For the second paper, I basically used the same model but expanded model capabilities, and I still listed the model setup and parameters in the SI part. The model setup and configurations for these two papers are basically the same, such as tables, equations, languages, etc. I sort of copy-pasted the key tables and equations from my first paper to my second paper, but they are all in the SI part, and I cited that the model setup and parameters are from the first paper.
So I wonder if what I did in my two papers in the SI part represents a plagiarism problem? If yes, are there any ways to make it correct? Please advise me.