| T O P I C R E V I E W |
| abufaisal6565 |
Posted - 10/29/2021 : 11:34:24 AM
How do we estimate the optimal parameter values of a set (4 ODE's) relating to each other using the least square method or any other to best fit observed data with simulated ones?
Regards
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| 9 L A T E S T R E P L I E S (Newest First) |
| abufaisal6565 |
Posted - 11/05/2021 : 4:59:51 PM
Thanks I did. Should I use the graph based on a daily number of data or accumulated ones? Since we are using data fitting for ODE system?
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| YimingChen |
Posted - 11/01/2021 : 09:49:45 AM
You need to fix some of the bad minus signs in the equations. e.g. dy4/dx = k4*y3 - k3*y4.
James |
| YimingChen |
Posted - 11/01/2021 : 09:18:55 AM
You didn't set the inputs for the dependent variables y2-y5.
James |
| abufaisal6565 |
Posted - 10/31/2021 : 10:17:59 AM
Any feedback? is it possible to do so in originlab?
Regards |
| abufaisal6565 |
Posted - 10/30/2021 : 10:01:18 PM
Greetings..
my system is differentiating with respect to time, not X maybe this is the issue?
Kindly help, it is even not considering the write parameters names to be estimated (k1,k2,k3,k4) |
| abufaisal6565 |
Posted - 10/30/2021 : 9:42:31 PM
I did but the parameters are shown wrong as well they are k1,k2,k3,k4
I couldn't modify them
I did the first ODE corrected as (1/270) with the same error message
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| YimingChen |
Posted - 10/29/2021 : 1:55:06 PM
Yes, you can set a set of ODE equations. See below:
James |
| abufaisal6565 |
Posted - 10/29/2021 : 12:02:02 PM
I have visited this link and checked the app. but does it work for many ODE's such as the link below
https://www.r-bloggers.com/2013/06/learning-r-parameter-fitting-for-models-involving-differential-equations/
Regards |
| YimingChen |
Posted - 10/29/2021 : 11:42:05 AM
Can you try this app?
https://www.originlab.com/fileExchange/details.aspx?fid=500
James |
