Input:
ReadFromFile(Q_Prelez2015.txt) *3.986/14.2-MonthlyValues( Jan, 0.687, Feb, 0.893, Mar, 0.893, Apr, 0.893, May, 0.893, Jun, 0.687, Jul, 0.687, Aug, 0.687, Sep, 0.687, Oct, 0.687, Nov, 0.687, Dec, 0.687 )

When I go to Go to View result strimflow,apper:

Error.
Expression result is less than minimum of 0.The value was -0.204

After that view result not work.

Previous versions of WEAP worked even when the difference between the two parameter values was negative.

Hi Shigeri,
I would suggest that you make your streamflow input into a "Maximum" expression. The software will then choose the higher value between Zero and your expression, thus avoiding any negative values.

Max(0, ReadFromFile(Q_Prelez2015.txt) *3.986/14.2-MonthlyValues( Jan, 0.687, Feb, 0.893, Mar, 0.893, Apr, 0.893, May, 0.893, Jun, 0.687, Jul, 0.687, Aug, 0.687, Sep, 0.687, Oct, 0.687, Nov, 0.687, Dec, 0.687 ))

Anne