Feb 14, 2012 (Dow Jones Commodities News via Comtex) -- 3:54 (Dow Jones) Cotton edged up despite a stronger dollar and weak outside markets as traders continue to roll out of the March contract and into the May. "March is kind of getting to be a little bit irrelevant," says INTL FCStone senior analyst Andy Ryan. He expects prices for March to remain in the 90-94c/lb. range. May, on the other hand, should trade slightly higher, between 92 and 94c/lb, Ryan says. Cotton for March delivery settled up 0.8% at 92.25c/lb, while the May contract was 0.3% higher at 92.84c/lb.