Rank in My Guild

I am wondering if my rank within my guild is determined by my participation on a daily basis? I used to be ranked higher when I was playing all the time but had lower player level, less GP, less toons in my roster. I got frustrated and burned out now I'm playing less, contributing less. I thought my rank dropped because of this. I'm not earning my daily raid tickets etc. More active players of lesser player level are now ranked above me. Or is our rank a function only a guild leader can set, I'm an officer and I cannot change it, perhaps it is based simply his or her whim?

PS: Please no accusations of Necroing, I found this post and posted, others can too and we are all looking for our answer, if people are still posting its an active thread . . . just a SLOW one lol.