Search found 69 matches
- Mon Mar 13, 2017 10:22 am
- Forum: Ventity
- Topic: Mortality rates in a cohort model depending on creation time of the cohort
- Replies: 28
- Views: 81903
Re: Mortality rates in a cohort model depending on creation time of the cohort
The model works fine! And the next questions arrive immediately... I would like to have to "strains" in the model, a population with a low risk and a population with a increased risk for coronary heart disease. I decided to refer to blood pressure (together with gender and age). For this r...
- Mon Mar 06, 2017 12:56 pm
- Forum: Ventity
- Topic: Mortality rates in a cohort model depending on creation time of the cohort
- Replies: 28
- Views: 81903
Re: Mortality rates in a cohort model depending on creation time of the cohort
I realised that there is a problem with Births exogenous in the current model. As I wrote in the previous post, the model works fine with the annual mortality rates. However, Births are all added to only one cohort, the year-2000 cohort! In the model which you posted (CohortPopGroups3 Test Swiss Pop...
- Fri Feb 10, 2017 2:36 pm
- Forum: Ventity
- Topic: Mortality rates in a cohort model depending on creation time of the cohort
- Replies: 28
- Views: 81903
Re: Mortality rates in a cohort model depending on creation time of the cohort
Thanks for your helpful posts! I used now annual existing cohorts and also annual mortality rates. With these data the periodicity disappears and also the discontinuity with regard to Sum deaths. To make it simple for this test I used the same mortality rates (year 2000) for all years of birth. Due ...
- Tue Feb 07, 2017 3:11 pm
- Forum: Ventity
- Topic: Mortality rates in a cohort model depending on creation time of the cohort
- Replies: 28
- Views: 81903
Re: Mortality rates in a cohort model depending on creation time of the cohort
Wonderful! It does what I imagined. Thanks a lot! However, I have a computational problem. When I look at Sum deaths these figures are too high (by a factor of 2 in 2000, compared to historical data). The decay afterwards can partially be explained by the fact that I did not yet include Net migratio...
- Fri Feb 03, 2017 12:20 pm
- Forum: Ventity
- Topic: Mortality rates in a cohort model depending on creation time of the cohort
- Replies: 28
- Views: 81903
Re: Mortality rates in a cohort model depending on creation time of the cohort
Hi There are indeed inconsistencies for deaths which are problematic. The mortality data are available as - mortality tables (mortality rates for each year of birth, age, gender) for existing cohorts (> 1900) as well as for future cohorts (assumptions used to calculate population projections). - Dea...
- Tue Jan 24, 2017 2:45 pm
- Forum: Ventity
- Topic: Mortality rates in a cohort model depending on creation time of the cohort
- Replies: 28
- Views: 81903
Re: Mortality rates in a cohort model depending on creation time of the cohort
Hi Here you find an example of the cohort model we discussed about for the Swiss population for 2000-2030. I used existing cohorts from 1900-1990 with the corresponding, available age mortality rates. For 2000-2030 I used a default age mortality rate lookup (using the data of 2010). Is there a bette...
- Thu Jan 19, 2017 5:57 pm
- Forum: Ventity
- Topic: Mortality rates in a cohort model depending on creation time of the cohort
- Replies: 28
- Views: 81903
Re: Mortality rates in a cohort model depending on creation time of the cohort
Thanks for your suggestions. I did the following so far: I used different Age mortality rate lookups for different existing cohorts, thus I put the Age mortality lookup in the cohort entity and initialized it for each existing cohort separately. The data are similar to your example, derived from the...
- Mon Jan 16, 2017 2:48 pm
- Forum: Ventity
- Topic: Minor question for CohortPop2
- Replies: 1
- Views: 3237
Minor question for CohortPop2
Hi
When testing the CohortPop2 model I get a warning saying that there is a mismatch between expression contents and diagram causal links. Though there is no computational problem, it is not clear to me, what the warning means.
When testing the CohortPop2 model I get a warning saying that there is a mismatch between expression contents and diagram causal links. Though there is no computational problem, it is not clear to me, what the warning means.
- Mon Jan 16, 2017 8:51 am
- Forum: Ventity
- Topic: Mortality rates in a cohort model depending on creation time of the cohort
- Replies: 28
- Views: 81903
Mortality rates in a cohort model depending on creation time of the cohort
Hi
I have a question regarding a cohort model. For a correct population model which reflects the technical and medical progress, the table for mortality rates should depend on the creation time of the cohor. How should this be implemented?
Best regards
Justus
I have a question regarding a cohort model. For a correct population model which reflects the technical and medical progress, the table for mortality rates should depend on the creation time of the cohor. How should this be implemented?
Best regards
Justus
- Tue Aug 30, 2016 7:42 am
- Forum: Ventity
- Topic: cohort modeling examples
- Replies: 21
- Views: 17210
Re: cohort modeling examples
Thanks
I tried now the model with constant exogenous births and intervals of 10 and 1 year, assuming that no differences in Sum Population should occur. However, they still prevail, presumably due to the same table issue with regard to mortality.
I tried now the model with constant exogenous births and intervals of 10 and 1 year, assuming that no differences in Sum Population should occur. However, they still prevail, presumably due to the same table issue with regard to mortality.
- Mon Aug 29, 2016 9:20 am
- Forum: Ventity
- Topic: cohort modeling examples
- Replies: 21
- Views: 17210
Re: cohort modeling examples
Hi First, let me thank you for the wonderful videos with the SIR-model! Today let me ask a question about a cohort model you posted previously (e.g. CohortPop4). Here the results depend strongly on the choice of the cohort creation interval (in case of endogenous births). Three questions: a) What is...
- Mon Jul 04, 2016 1:49 pm
- Forum: Ventity
- Topic: use entities in new diagram
- Replies: 4
- Views: 5063
Re: use entities in new diagram
Sorry I wanted to paste part of an existing structure ("paste" NOT "paste as new").
- Mon Jul 04, 2016 1:46 pm
- Forum: Ventity
- Topic: use entities in new diagram
- Replies: 4
- Views: 5063
Re: use entities in new diagram
I wanted to paste a part of the model onto a new diagram (replicate). The structure is not fully visible (see the attached document and the ventity model). In particular the flows are not visible. Moreover, I'm not sure if the "copy paste" functionalities work properly.
- Fri Jul 01, 2016 12:28 pm
- Forum: Ventity
- Topic: Use different table functions
- Replies: 17
- Views: 15899
Re: Use different table functions
YES, this was the problem. Now the models work fine. Thanks!
- Thu Jun 30, 2016 7:12 pm
- Forum: Ventity
- Topic: Use different table functions
- Replies: 17
- Views: 15899
Re: Use different table functions
12 May 2016
- Thu Jun 30, 2016 9:21 am
- Forum: Ventity
- Topic: Use different table functions
- Replies: 17
- Views: 15899
Re: Use different table functions
Hi When trying the DiffLookup1 model I got this message: Product: Ventity (beta) Version: 1.0.1.0 Assembly Name Assembly Version Accessibility 4.0.0.0 file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Accessibility/v4.0_4.0.0.0__b03f5f7f11d50a3a/Accessibility.dll Antlr4.Runtime.v4.5 1.0.1.0 file://...
- Tue Jun 28, 2016 6:32 am
- Forum: Ventity
- Topic: Use different table functions
- Replies: 17
- Views: 15899
Re: Use different table functions
Thanks! However, how do I tell Ventity to use two different table functions, one for "round", the other for "square" (see the attached example)? I tried to use the external file with the format indicated for table functions. Ventity seems not to be able to read this format (a pro...
- Thu Jun 16, 2016 12:24 pm
- Forum: Ventity
- Topic: Use different table functions
- Replies: 17
- Views: 15899
Re: Use different table functions
Wonderful! No hurry!
- Tue Jun 14, 2016 6:35 am
- Forum: Ventity
- Topic: use entities in new diagram
- Replies: 4
- Views: 5063
use entities in new diagram
Sorry for asking again... How do I use existing entities in a new diagram? I went to the entity inspector of the "widget" entity, created a new diagram, and wanted to use some existing entities in this diagram. It works, but I cannot link them, e.g. flows out/in from a stock. How can I do ...
- Tue Jun 14, 2016 5:38 am
- Forum: Ventity
- Topic: Use different table functions
- Replies: 17
- Views: 15899
Re: Use different table functions
Great!
Do you have an idea how long it will take you to fix the problem?
Do you have an idea how long it will take you to fix the problem?
- Thu Jun 09, 2016 10:03 am
- Forum: Ventity
- Topic: Use different table functions
- Replies: 17
- Views: 15899
Use different table functions
Hi I would like to have table functions that are different according to an attribute. In the example below the attribute is type (of widgets: round, square) and I would like to have to different table functions for each type (effect of X on Y). How can I do this? Is it possible in this structure, or...
- Thu Jun 02, 2016 7:28 am
- Forum: Ventity
- Topic: cohort modeling examples
- Replies: 21
- Views: 17210
Re: cohort modeling examples
Hi coming back to the issue of having different lookups for mortality rates for e.g. gender, region at the group level. I tried to move the lookup to the group level and got the following error message: Reference "Cohort" Missing condition for "CohortID" attribute. I have two que...
- Wed Jun 01, 2016 8:00 am
- Forum: Ventity
- Topic: Include external data source
- Replies: 3
- Views: 4032
Re: Include external data source
Hi
Yes, that is what I would like to have. I just upload the file.
Yes, that is what I would like to have. I just upload the file.
- Tue May 31, 2016 12:01 pm
- Forum: Ventity
- Topic: Include external data source
- Replies: 3
- Views: 4032
Include external data source
Hi I have a question regarding use of an external data source. You will find attached a model where I used both the internal and the external data source, which give identical simulation results. My question goes towards the input of a table function. I used the format indicated in the table (X1,Y1)...
- Sat Apr 09, 2016 7:58 am
- Forum: Ventity
- Topic: A problem with attributes
- Replies: 2
- Views: 3731
Re: A problem with attributes
OK, I realise (assume?) that it is not possible to define an initial value for a flow rate. So, if I introduce an additional constant variable, it works...