creating structures in base workspace from function (appease from workspace block for 2D arrays)
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Hi guys, I need to create structures inside the base workspace from inside one of my functions and populate them with values, the problem is I don't explicitly know the names of the structures. Why? My model uses from workspace blocks, 2D arrays need structure form, as per Mathworks documentation. See below.
%some function
function [SimulationData,Error,Warnings] = ExtractTestCaseData(TestCaseFile,TestCase,OutputType)
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.
[NumericData,TextData,RawData] = xlsread(TestCaseFile,TestCase);
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%logic to create and populate simulationData structure with data from excel file
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if regularVector
assignin('base',SimulationData.Input(InputIndex).Name,SimulationData.Input(InputIndex).Values(1,:)); %no problem
elseif 2DArray
%now what? I need in the base workspace
%var.time=[TimeValues]
%var.signals.values=[DataValues]
%var.signals.dimensions=[DimValues]
assignin('base',SimulationData.Input(InputIndex).Name,'1');%create signal name with random value, I don't know the value of Name, need to convert to structure form as in the comments
evalin('base','nameIDontKnow.time=SimulationData.Time;'); %two problems actually, referencing a name I don't know in base workspace and base workspace has no concept of what SimulatinData.Time is, and so on if you catch my drift.
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end
Does anyone have an idea of how to make this work?? Thanks Dan
5 件のコメント
Stephen23
2017 年 2 月 20 日
Sounds like like a good situation for using nested functions. That would make it easy to solve, and avoids the whole eval / evalin / assingin hassle.
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daniel
2017 年 2 月 23 日
2 件のコメント
Stephen23
2017 年 2 月 24 日
"I don't see a major problem with using these functions to make stuff work"
The major problem is that you continue to use buggy code, and that you do not gain experience of how to write better, faster, and more robust code. You obviously feel like this is not a problem (beginners usually just want to "make it work"), but just imagine how that job interview will go one day:
- Interviewer: "How would you solve problem X?"
- You: "I would use this buggy and slow method that I have used lots of times to "make it work"".
- Interviewer: "Do you have experience of writing robust and reliable code?"
- You: "No"
Of course you can write code to "make it work". Anyone can do this.
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