I wanted to be able to fix a point on the line when I changed the slope, for example fixing a candidate regression line at the mean-mean point. I think I have a working model of how the line works. The middle handle translates up and down as advertised. Grabbing an end handle rotates the line, but watch where you take your cursor; what ever point pt your cursor stops at, using the other end handle will rotate around that point pt. This is why sometimes the graph rotates around an end handle and sometimes not, it is all according if the end handle from the last drag could follow and stop where your cursor does. I have also notice that a drag off the window ends up in a rotation point at the boundary.
Can I get verification that (1) I am being clear, and if so, (2) this is correct. It would be really worthwhile (imo) to make this feature clear in the help. Or more embarrassingly, this is explained and I missed it. Thanks!
I wanted to be able to fix a point on the line when I changed the slope, for example fixing a candidate regression line at the mean-mean point. I think I have a working model of how the line works. The middle handle translates up and down as advertised. Grabbing an end handle rotates the line, but watch where you take your cursor; what ever point pt your cursor stops at, using the other end handle will rotate around that point pt. This is why sometimes the graph rotates around an end handle and sometimes not, it is all according if the end handle from the last drag could follow and stop where your cursor does. I have also notice that a drag off the window ends up in a rotation point at the boundary.
Can I get verification that (1) I am being clear, and if so, (2) this is correct. It would be really worthwhile (imo) to make this feature clear in the help. Or more embarrassingly, this is explained and I missed it. Thanks!