Question

我尝试使用 fitgmdist.m 来拟合高斯混合模型。但是，当它调用类 gmdistribution 的构造函数时。我得到错误的messgae如下：

错误：在索引表达式中无效使用脚本/home/ubuntu/UAVProject_DataStructure/gmdistribution.m 错误：来自：错误：/home/ubuntu/UAVProject_DataStructure/fitgmdist.m第505行第7行错误：/home/ubuntu/UAVProject_DataStructure/computeGMM.m第78行第10栏错误：/home/ubuntu/UAVProject_DataStructure/ImageProcessing.m第18行第13列

我在当前目录中放了2个文件： fitgmdist.m 和 gmdistribution.m 。

我还更改了gmdistribution.m名称以避免使用与八度音程库文件相同的名称，但它不起作用。有人可以帮忙吗？感谢。

这里调用构造函数代码：

obj = gmdistribution (best_params.mu, best_params.Sigma, best_params.p');

这是构造函数代码：

 ########################################
  ## Constructor
  function obj = gmdistribution (mu,sigma,p = [],extra = [])
    obj.DistributionName = "gaussian mixture distribution";
    obj.mu = mu;
    obj.Sigma = sigma;
    obj.NumComponents = rows (mu);
    obj.NumVariables = columns (mu);
    if (isempty (p))
      obj.ComponentProportion = ones (1,obj.NumComponents) / obj.NumComponents;
    else
      if any (p < 0)
        error ("gmmdistribution: component weights must be non-negative");
      endif
      s = sum(p);
      if (s == 0)
        error ("gmmdistribution: component weights must not be all zero");
      elseif (s != 1)
        p = p / s;
      endif
      obj.ComponentProportion = p(:)';
    endif
    if (length (size (sigma)) == 3)
      obj.SharedCovariance = false;
    else
      obj.SharedCovariance = true;
    endif
    if (rows (sigma) == 1 && columns (mu) > 1)
      obj.DiagonalCovariance = true;
      obj.CovarianceType = 'diagonal';
    else
      obj.DiagonalCovariance = false;       ## full
      obj.CovarianceType = 'full';
    endif

    if (!isempty (extra))
      obj.AIC                   = extra.AIC;
      obj.BIC                   = extra.BIC;
      obj.Converged             = extra.Converged;
      obj.NegativeLogLikelihood = extra.NegativeLogLikelihood;
      obj.NlogL                 = extra.NegativeLogLikelihood;
      obj.NumIterations         = extra.NumIterations;
      obj.RegularizationValue   = extra.RegularizationValue;
    endif
  endfunction

Octave在索引表达式中无效使用脚本

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