pmr1 DR has exponential viability curve

Dr. Guo show that pmr1 DR has exponential survival curve, while YPD still have good Gompertz shape.

From H Guo:
"A quick test for pmr1-DR does show smaller AIC (3154.3) for the "exp" model than both "gompertz" (3155.0) and "weibull" (3155.9); meaning that the exponential model is more probable than Gompertz by 2 times, and than Weibull by 5 times."