I want to make a training curve. Therefore I must add the previous Observation to my variable "X".
OBServation1: X= Condition from OBS1
OBServation2: X= x from OBS1 plus Condition from OBS2
OBServation3: X= x from OBS2 plus Condition from OBS3
OBServation4: X= x from OBS3 plus Condition from OBS4
OBServation5: X= x from OBS4 plus Condition from OBS5
OBServation6: X= x from OBS5 plus Condition from OBS6
But I dont know how I get the previous Observation. Maybe have anybody an idea?