qsim | Feynman simulators for quantum circuits
kandi X-RAY | qsim Summary
kandi X-RAY | qsim Summary
Quantum circuit simulators qsim and qsimh. These simulators were used for cross entropy benchmarking in [1]. [1], F. Arute et al, "Quantum Supremacy Using a Programmable Superconducting Processor", Nature 574, 505, (2019).
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QUESTION
I am a student interested in hydrology and runoff-simulation. I am using topmodel package in R with huagrahuma dataset, and I want to optimize its parameters by using sceua method in rtop package. I wrote a code, using the example in "rtop package | R Documentation" as a reference. However, I got an error when optimizing the parameters. It says "error in if (sum(mapply(FUN = function(x, y, z) max(y - x, x - z, 0), : missing value where TRUE/FALSE needed". At first, I suspected the error was triggered by NA values which Qobs has. So I converted NA to numerical values but the same error has occurred again. How can I optimize the parameters by SCE-UA method?
Links
topmodel function | R Documentation
https://www.rdocumentation.org/packages/topmodel/versions/0.7.3/topics/topmodel
Tutorial on the use of topmodel in R
https://paramo.cc.ic.ac.uk/topmodel_tutorial
topmodel: Implementation of the Hydrological Model TOPMODEL in R
https://cran.r-project.org/web/packages/topmodel/index.html
rtop package | R Documentation
https://www.rdocumentation.org/packages/rtop/versions/0.5-14
rtop: Interpolation of Data with Variable Spatial Support
https://cran.r-project.org/web/packages/rtop/index.html
ANSWER
Answered 2021-Feb-01 at 15:33I found another package that also has sceua optimization function, named "hydromad". By using this, I was able to optimize TOPMODEL parameters. Here is the code when optimizing topmodel function from topmodel package with huagrahuma dataset.
hydromad | Hydrological Model Assessment and Development
http://hydromad.catchment.org/#SCEoptim
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