If you just want the equation, here it is

送交者: 一默于 June 20, 2005 11:26:27:

回答: Help! Help! 由寒露于 June 20, 2005 09:12:57:

F(x,a1,a2,a3,a4)=a1+(a3-a2)/(1+exp(-a2*(x-a4))
a1, a2, a3, and a4 are four adjustable parameters.
是不是? 错了责任撇清:-)
好像奏药的愿意用这玩意.

Thanks, 一默 - 寒露 (150 bytes) 12:00:59 6/20/05 (0)
寒露 SAYS "logistic regression", MAYBE 奏药的愿意用这玩意. :-) - lala (121 bytes) 11:54:02 6/20/05 (2)
- Thanks, lala - 寒露 (37 bytes) 12:04:44 6/20/05 (1)
  - YOU ARE WELCOME! :-) - lala (66 bytes) 13:03:52 6/20/05 (0)