Recent content by NeuroRYoung

@atyy Super! Thanks for the helpful link. Clarifies at least some of what's going on.

Ya, I read Appendix B. It doesn't seem to go into the matter. Or at least if it does, I can't see the connection. Appendix B pg.1 .... http://imgur.com/mZCodBh pg.2 .... http://imgur.com/OtEQ7J6 pg.3 .... http://imgur.com/TVA7EV1 Moreover, V-hat never showed up before that paragraph...

I bought a biophysics book the other day, and immediately began reading it. Sadly, I'm only 12 pages in now, because I seem to have run up against a wall in my understanding. You see, I don't understand a step being taken in the math, and am not sure what I should learn to understand it better...

Thanks you all. As it turns out, I was an idiot. His definition was correct (seemingly). It turns out for any point x_j , if we move an infinitesimal amount 'left' (in the negative direction), the CDF takes on the value of F( x_(j-1) ). A friend showed me graphically. @Stephen You are right...

...or more likely, I'm just being retarded. So here's the offending statement: Let X be our random variable with a countable range of {x_1, x_2, ... , x_n, ...}. Let f(x) be a discrete density function and F(x) the corresponding cumulative distribution function. Then, f(x_j) = F(x_j) -...