I’d like a PDF version too. I appreciated the effort in an online highlighter, but on the PDF I can take arbitrary notes and they will stay saved forever on my computer if I need to find something I read and my thoughts on it, it does happen.
In particular I’d like a PDF with WIDE MARGINS. Not like normal newspaper pdfs were you have to take notes in collapsible stickies or find a sophisticated note-taker app that is not compatible with other readers.
I’m confused, why can’t you include two predictors if they are not independent? I’m assuming that with “independent” you mean correlation 0, if you instead mean no collinearity, i.e., linearly independent vectors of predictors, then feel free to ignore my comment.