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[英]How to call a simple MATLAB function in a MATLAB generated DLL from C#
[英]How to call matlab function from c#
我正在用Matlab構建示例函數。 函數是這樣的:
function output = freqDomainHRV(ibi,VLF,LF,HF,AR_order,window, ...
noverlap,nfft,fs,methods,flagPlot)
//code
end
現在,要調用此函數,我可以使用以下代碼:
output = freqDomainHRV(sampledata,[0 .16],[.16 .6],[.6 3], ...
% 16,256,128,512,10,{'welch','ar','lomb'},1);
現在,我想從C#程序調用此函數,因此我要從matlab構建dll,並將其導入到我的visual studio項目中,然后編寫以下代碼:
private void calculateFreqDomainHRV()
{
//costruisco l'array contenente i valori dell ECG
MWNumericArray res = new MWNumericArray(new double[] { 0.789, 0.828, 0.844, 0.820 });
MWNumericArray vlf = new MWNumericArray(new double[] { 0, 0.04 });
MWNumericArray lf = new MWNumericArray(new double[] { 0.04, 0.15 });
MWNumericArray hf = new MWNumericArray(new double[] { 0.15, 0.40 });
MWCellArray method = new MWCellArray(3);
method[1] = new MWCharArray("welch");
method[2] = new MWCharArray("ar");
method[3] = new MWCharArray("lomb");
var arOptionOrder = 16;
var winWith = 128;
var winOverlap = 64;
var pointPSD = 1024;
var interpolationRate = 2;
/*freqDomainHRV(sampledata,[0 .16],[.16 .6],[.6 3], ...
% 16, 256, 128, 512, 10);*/
var output = matlab.freqDomainHRV(res, vlf, lf,hf, arOptionOrder, winWith, winOverlap, pointPSD, interpolationRate, method,1);
}
但是,如果我嘗試調用此方法,則會收到以下錯誤消息:
. MWMCR::EvaluateFunction error ...
Interpolation requires at least two sample points in each dimension.
Error in => freqDomainHRV.m at line 97.
... Matlab M-code Stack Trace ...
at
file D:\MATLAB\R2018a\mcr\toolbox\matlab\polyfun\interp1.p, name interp1, line 0.
at
file C:\Users\michele.castriotta\AppData\Local\Temp\mik\mcrCache9.4\Matlab2\MatlabECG\freqDomainHRV.m, name calcWelch, line 145.
at
file C:\Users\michele.castriotta\AppData\Local\Temp\mik\mcrCache9.4\Matlab2\MatlabECG\freqDomainHRV.m, name freqDomainHRV, line 97.
通過https://github.com/jramshur/HRVAS/blob/master/freqDomainHRV.m判斷,第一個選項應該是2Darray(ibi = 2Dim時間(s)和心跳間隔(s))。
但是,您將一維數組指定為Input(變量res
),因此我相信該錯誤。
作為@KevinK。 和@CrisLuengo建議嘗試在不更改Matlab測試用例的任何參數的情況下測試您的功能。
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