[chigozie_onyeuk]

Thanks for your help.
I defined external inflows( such as flows from sub-basins - if they could be classified as such) and imputed datas to the relevant field(even if they are not the actual figures but with the purpose to test the behaviour of the soft ware as to follow on how to run the analysis). Each time that I ran the analysis, I received the same message. I defined up to 12 separate groups of that data with accompaning graphs yet I ended up with same message. Pls tell me what to do.
Teddy