Dumb question, I know......

I guess I will put this here so that someone will at least maybe respond (and I don't realy know where else to put it). 
Someone explain this to me: 4 axis joystick (X,Y,Z & R)
DOes this mean that the stick itself goes up and down to simulate something like a collective, besides having a built in rudder?

Someone explain this to me: 4 axis joystick (X,Y,Z & R)
DOes this mean that the stick itself goes up and down to simulate something like a collective, besides having a built in rudder?