Why do I receive an 'Invalid input argument of type 'double'. Input must be a structure or a Java or COM object' error while loading data in a simbiology fit program?
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I deviced a kinetic model using simbiology, simulated it and everything worked fine. Then I loaded a data set from excel containing three columns: ID, Time and concentration. I set ID as group, Time as independent and concentration as depended variables. But when I run the program it says
Invalid input argument of type 'double'. Input must be a structure or a Java or COM object.
I've also tried loading the data directly from the workspace and it gave the same error.
I converted the data to a structure and that is not listed as a valid input type while importing a dataset. I checked online tutorials and everyone seems to be able to load 'double' types.
The reaction is just A+B-->null
And dB/dt = -k*[B] and A is constant
Fulden Buyukozturk on 19 Oct 2021
Edited: Fulden Buyukozturk on 19 Oct 2021
Are you running R2021b and is your dataset has only one group? If so, this is likely a known bug with the app that affects datasets with no group or one group.
You could use the command-line interface fitproblem instead of the app or run the app in R2021a. Sorry for the inconvenience.
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