Thanks for that Tom - most useful.
And thanks for taking the trouble to add rainbow colours to your toolbar - glad i had a couple of Paracetamol to hand
Search found 112 matches
- Wed Dec 08, 2010 1:08 pm
- Forum: Vensim
- Topic: POISSON DISTRIBUTION
- Replies: 2
- Views: 2646
- Tue Dec 07, 2010 11:04 am
- Forum: Vensim
- Topic: POISSON DISTRIBUTION
- Replies: 2
- Views: 2646
POISSON DISTRIBUTION
Hello all. I'm having a mental block with implementing a POISSON distribution within Vensim. If the mean is 1.5, then (taken from Excel), the probability of: 1 is 22.3% 2 is 33.4% 3 is 12.5% etc, etc. Now, how do I represent this in Vensim please (obviously the mean will be variable)? The RANDOM POI...
- Fri Feb 05, 2010 11:52 am
- Forum: Vensim
- Topic: Subscripts and graphs.
- Replies: 4
- Views: 3118
- Fri Feb 05, 2010 9:50 am
- Forum: Vensim
- Topic: Subscripts and graphs.
- Replies: 4
- Views: 3118
- Fri Feb 05, 2010 9:08 am
- Forum: Vensim
- Topic: Subscripts and graphs.
- Replies: 4
- Views: 3118
Subscripts and graphs.
Good morning all. I have question about subscripts and the resulting ouput graphs. The first question is to do with the number of subscripts on one variable. It's a little difficult to explain, but I'll try anyway! I have a variable (called example1) that uses two subscript ranges (aircraft,probabil...
- Fri Feb 05, 2010 8:44 am
- Forum: Vensim
- Topic: text outputs
- Replies: 8
- Views: 3955
- Tue Feb 02, 2010 2:34 pm
- Forum: Vensim
- Topic: text outputs
- Replies: 8
- Views: 3955
- Tue Feb 02, 2010 1:35 pm
- Forum: Vensim
- Topic: text outputs
- Replies: 8
- Views: 3955
Thanks for your response Bob - much appreciated. Unfortunately it seems as if you've ventured into an advanced subscript topic that I've yet to visit. Could you please explain how LReadiness and EReadiness are defined please? I'm assuming they are some sort of sub-subscript of Readiness? I've tried ...
- Fri Jan 29, 2010 12:06 pm
- Forum: Vensim
- Topic: text outputs
- Replies: 8
- Views: 3955
- Fri Jan 29, 2010 10:38 am
- Forum: Vensim
- Topic: text outputs
- Replies: 8
- Views: 3955
text outputs
Hello. I have a query wrt text outputs. For instance, I have a subscript with 12 elements. If an element is between 0 and 24, I want to display "a". If it's between 24-48, I want to display "b" etc etc. Following this, I want to sum the subscript so that I get the total number of...
- Fri Oct 03, 2008 7:08 am
- Forum: Vensim
- Topic: ....... is not used in the model
- Replies: 6
- Views: 4098
- Tue Sep 09, 2008 1:36 pm
- Forum: Vensim
- Topic: ....... is not used in the model
- Replies: 6
- Views: 4098
Thanks Bob and Tony. You are both right - the error message masked the fact that there are other real errors involving the subscripts. I've tried to trace the cause of the error but am unable to do so. Bob - is there a chance you could have a quick look if I were to email you the model? Unfortunatel...
- Tue Sep 09, 2008 9:37 am
- Forum: Vensim
- Topic: ....... is not used in the model
- Replies: 6
- Views: 4098
- Tue Sep 09, 2008 9:19 am
- Forum: Vensim
- Topic: ....... is not used in the model
- Replies: 6
- Views: 4098
....... is not used in the model
Morning/afternoon/evening everyone. I'm getting a particularly annoying error message that is preventing me from running my model. "variable1 is not used in the model" I'm getting this message for every single variable that is at the end of a logic chain. - these variables are used to disp...
- Mon Mar 03, 2008 11:54 am
- Forum: Vensim
- Topic: Human Resources Model
- Replies: 1
- Views: 1967
Human Resources Model
Good morning everyone. I would like to add Human Resources to my ever burgeoning model. It's obviously an extremely complex subject and one that requires more knowledge than I have in order to model it. Can somebody recommend where I might be able to download a HR model that requires some "twea...
- Mon Feb 25, 2008 9:09 am
- Forum: Vensim
- Topic: I don't understand.........................
- Replies: 10
- Views: 5063
- Fri Feb 22, 2008 10:03 am
- Forum: Vensim
- Topic: I don't understand.........................
- Replies: 10
- Views: 5063
Hi JJ - yes, at the moment I haven't put any feedback loops and on any particular seed the results will be exactly the same on every run. However, one of the purposes of the model is to give a predicted measure if all variables were at their nominal values. We can then run a series of sensitivity an...
- Fri Feb 22, 2008 8:22 am
- Forum: Vensim
- Topic: I don't understand.........................
- Replies: 10
- Views: 5063
- Thu Feb 21, 2008 8:09 am
- Forum: Vensim
- Topic: I don't understand.........................
- Replies: 10
- Views: 5063
Thanks very much for your replies Tony, Kind Soul JJ and Bob. I agree that the model is a little too complex, but believe me when I say that I've tried very hard to reduce the complexity! I'll try to do what you suggest JJ - makes perfect sense. Thanks very much for looking into this Bob. The attach...
- Wed Feb 20, 2008 3:31 pm
- Forum: Vensim
- Topic: I don't understand.........................
- Replies: 10
- Views: 5063
I don't understand.........................
Afternoon everyone. I was wondering if some kind soul (Bob, JJ) can help me with the attached model? I can't understand why in the process "Total", the values of [s1,p1], [s1,p2], [s1,p3], [s1,p4] ...................[s1,p20] aren't exactly the same at a particular point in time. For instan...
- Fri Feb 01, 2008 11:06 am
- Forum: Vensim
- Topic: 2d Subscripting option in Tabletool displays only one elemen
- Replies: 6
- Views: 3549
- Thu Jan 17, 2008 7:50 am
- Forum: Vensim
- Topic: Error Message
- Replies: 6
- Views: 3028
- Tue Jan 15, 2008 9:13 am
- Forum: Vensim
- Topic: Error Message
- Replies: 6
- Views: 3028
Thanks Bob. However, it isn't ideal to leave the model unprotected unfortunately. The model is situated on the company network (it has to be, for various reasons) and there are a number of people who have Vensim on their computers. There is therefore always a danger of somebody opening the model and...
- Mon Jan 14, 2008 11:59 am
- Forum: Vensim
- Topic: Error Message
- Replies: 6
- Views: 3028
Hi Bob. Yes using 5.7 (DSS). I've tried using different passwords, but they all result in the same error message. Having thought about it, all the other models that are password protected were created using the previous version. I can open and save all the older models with no error ...................
- Mon Jan 14, 2008 10:45 am
- Forum: Vensim
- Topic: Error Message
- Replies: 6
- Views: 3028
Error Message
Good morning all. I get the following error mesage when I try to save a .vmf file that I've just password protected: "PROGRAM ERROR PLEASE CONTACT VENTANA Incomplete/Bad file write - save as text, close Vensim and reopen." However, if I clear away the password, everything is fine. I have a...