Hello Collin Mui
                            
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                                                Posted:
                            
                                1 decade ago                            
                            
                                2012年11月2日 GMT+8 17:58                            
                        
                        
                                                    I have the same problem. 
The stop condition expression that I use is 
mod1.ppb1<0.1 
where mod1 is the index from the model and ppb1 is the point probe. 
The expression is well evaluated and the model works but the stop condition isn't.
Does anybody know why?
Paul                                                
                                                
                            I have the same problem. 
The stop condition expression that I use is 
mod1.ppb1                        
                                                
                                                                                                            
                                             
                                            
                                                
    
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                                                Posted:
                            
                                1 decade ago                            
                            
                                2012年11月2日 GMT+8 17:59                            
                        
                        
                                                    If I use 
mod1.ppb1-0.1 
the model stops when the point value reaches the value 0.1, therefore it works. But what about "less than" ?                                                
                                                
                            If I use 
mod1.ppb1-0.1 
the model stops when the point value reaches the value 0.1, therefore it works. But what about "less than" ?                        
                                                
                                                                                                            
                                             
                                            
                                                
    
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                                                Posted:
                            
                                1 decade ago                            
                            
                                2012年11月2日 GMT+8 18:08                            
                        
                        
                                                    Dear Collin,
I was killing my brain with this and finally I have discovered how it works.
Just write:
0.5-(modx.ppby<value)
where x and y denote the index of model and probe evaluation and the value is the desired value. My example:
0.5-(mod1.ppb1<0.02)
                                                
                                                
                            Dear Collin,
I was killing my brain with this and finally I have discovered how it works.
Just write:
0.5-(modx.ppby                        
                                                
                                                                                                            
                                             
                        
                        
                            
                                                                                        
                                Nagi Elabbasi
                                                                                                                                                    Facebook Reality Labs
                                                         
                            
                         
                                                
    
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                                                Posted:
                            
                                1 decade ago                            
                            
                                2012年11月3日 GMT+8 04:27                            
                        
                        
                                                    You figured it out obviously. I just want to clarify one thing. The Stop condition terminates the analysis when the stop expression becomes negative. The Boolean operators like >, < evaluate to 0 (False) or 1 (True). That’s why they don’t work as you expected. Your modified expression takes care of that.                                                
                                                
                            You figured it out obviously. I just want to clarify one thing. The Stop condition terminates the analysis when the stop expression becomes negative. The Boolean operators like >, < evaluate to 0 (False) or 1 (True). That’s why they don’t work as you expected. Your modified expression takes care of that.