lookup problem

[Siti murni]

I am a newer of using the vensim
what the solution of the warnings as i showed below in my model after i simulate the model

WARNING: Lookup out of bounds at 1 Above -#learning curve#- computing -learning curve-.
WARNING: Lookup out of bounds at 1 Above -#workload#- computing -workload-.

i have attached my model
thank you.

[Administrator]

What is happening is that the x value you are passing to the lookup table that is greater/less than the range of the lookup.

Look at the values for "Ratio", it lies outside of the range of the lookup (0 to 100).

[Administrator]

If it helps, the "Students learn driving" stock is the problem here. Look at the table of values.

[Siti murni]

If it helps, the "Students learn driving" stock is the problem here. Look at the table of values.

im sorry but i still didn't understand about it. i still dont know what i should do about this warning and i still confuse

[Administrator]

You can ignore it for now. Concentrate on fixing the model first and I'm sure the warning will go away. Look closely at "students out", that's got an error in it. I'd enter proper units for "Got licence" and it might show you the error.

[Administrator]

This is an example.

This warning happens when you have a lookup that has a x range from say 0 to 100. So all works fine if you say "lookup (50)" or "lookup (10)", 50 and 10 are within the range 0-100. If you ask "lookup (300)", you will get the warning as 300 is not within 0-100.

Does this help explain it?