如何将一个C#字符串数组传递给MATLAB

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文章标签：

#c# #C# #matlab #Matlab #MATLAB #string #String #字符串数组

本文详细介绍了如何通过MATLABBuilderNE产品将C#中的字符串数组传递至MATLAB，并提供了实例代码演示，包括创建字符串数组、转换为特定MATLAB格式以及调用MATLAB函数处理数组内容。

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How do I pass an array of strings from C# to MATLAB using MATLAB Builder NE 3.0.2 (R2009b)?

Date Last Modified: Tuesday, October 30, 2012

Solution ID:		1-BSLVGB
Product:		MATLAB Builder NE
Reported in Release:		R2009b
Platform:		All Platforms
Operating System:		All OS

Subject:

How do I pass an array of strings from C# to MATLAB using MATLAB Builder NE 3.0.2 (R2009b)?

Problem Description:

I have created a .NET component using MATLAB Builder NE product. I would like to pass an array of string from C# program to the MATLAB function in the .NET component.

Solution:

It is possible to create a string array in C# and pass it to an MWCharArray like below:

String[] input = new String[2] {"This", "is"};
MWCharArray inputStr = new MWCharArray(input);

But unfortunately, MWCharArray sends the array of strings to MATLAB as a column vector but not as a row vector. Thus it is not very useful when we send array of strings in the above way.

So the best way to send array of strings from C# to MATLAB is by creating an MWCellArray. Please see below for a complete example on how to pass array of strings from C# to MATLAB:

Here is simple MATLAB code which takes input as a cell array and concatenates the contents of cell array with other strings:

function result = concatStringArrays(input) strVar = ['a', 'concatenated', 'string']; result = [input{1}, input{2}, strVar]; end
Please note that Matlab array starts at index 1 instead of 0 unlike in C#

After creating the .NET component from the above MATLAB code, the component can be used in the C# .NET application like below:

using System; using System.Collections.Generic; using System.Text; using MathWorks.MATLAB.NET.Utility; using MathWorks.MATLAB.NET.Arrays; using stringArray; namespace StringArr { class Program { static void Main(string[] args) { MWCellArray inputString = null; MWCharArray resultString = null; try { StringArray demo = new StringArray(); inputString = new MWCellArray(2); inputString[1] = new MWCharArray("This"); inputString[2] = new MWCharArray("is"); Console.WriteLine("String input converted to pass to MATLAB .NET component is\n{0}", inputString); resultString = (MWCharArray)demo.concatStringArrays(inputString); Console.WriteLine("resulting string from MATLAB function is {0}", resultString); Console.ReadKey(); } catch (Exception exception) { Console.WriteLine("Error: {0}", exception); Console.ReadKey(); } } } }