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model calibration
Posted: Tue Oct 03, 2006 2:37 pm
by mfgiorgetti
I've built a Vensim model to study the cooling of solids exposed to the air. The model plots the solid's temperature as a function of time; h (the film coefficient) is the only unknown parameter. Suppose I have data points for temperature as a function of time. Two questions: How do I plot the data points as individualized markers in the same graph showing the model as a continuous curve. How do I determine mathematically the "best fitting" curve to the data, thus estimating an optimal value for h? Thanks for your help.
Posted: Tue Oct 03, 2006 9:55 pm
by bob@vensim.com
To get dots only just right click on the graph tool and select that option. There is, unfortunately, no option for lines and dots though that would be misleading for calibration anyway.
As far as calibrating see Chapter 18 of the User's Guide.
Posted: Thu Oct 12, 2006 1:07 am
by mfgiorgetti
Originally posted by bob@vensim.com
To get dots only just right click on the graph tool and select that option. There is, unfortunately, no option for lines and dots though that would be misleading for calibration anyway.
As far as calibrating see Chapter 18 of the User's Guide.
Thank you. I will try.
mfgiorgetti
Re: model calibration
Posted: Sat Jun 05, 2021 2:31 pm
by rob_n
Fifteen years later, is there still no way to combine lines and dots in a custom graph?
Re: model calibration
Posted: Wed Jun 09, 2021 3:52 pm
by tomfid
It's on the list for the graphs in the new interface.