I have already studied this but i still need help with the data table in the given example by jmp the ship damage data I dont understand if after column 4 starting with Op 75 was part of the data and I assume not but why Op75 ? why Yr 60 is not among the columns ? I need some explanation on how to get columns after column 4
![Alma1_0-1678971872963.png Alma1_0-1678971872963.png](https://community.jmp.com/t5/image/serverpage/image-id/51149iACC05FA9C13D027B/image-size/medium?v=v2&px=400)