我怎么办这个错误Plz？ [英] What I Do About This Error Plz?

问题描述

  for （ int  i =  0 ; i< num_models; i ++）{
 model [i] .clear（）; 
 model [i] .train（samples [i]，Mat（），ps，NULL）; 
 
 cout<<  型号<< i<<  表示：; 
  const  CvMat * m = model [i] .get_means（）; 

错误C2228：'。clear'左边必须有class / struct / union

错误C2678：'['binary：找不到运算符，它带有'std类型的左操作数： ：vector'（或者没有可接受的转换）

错误C2228：'.train'的左边必须有class / struct / union

解决方案

< blockquote>检查模型变量的定义 - 它不是你想象的那样，或者至少VS认为它不是你认为的那样！ br />
或许，它应该是类似的东西

 MyModelClass模型[ 5 ]; 

for (int i = 0; i<num_models; i++) {
			model[i].clear();
			model[i].train(samples[i], Mat(), ps, NULL);

			cout << "Model " << i << " means: ";
			const CvMat* m = model[i].get_means();

error C2228: left of '.clear' must have class / struct / union
error C2678: '[' binary: no operator found which takes a left operand of type 'std :: vector' (or there is no acceptable conversion)
error C2228: left of '.train' must have class / struct / union

解决方案

Check the definition of your model variable - it isn't what you think it is, or at least VS doesn't think it is what you think it is!
Probably, it should be something along the lines of

MyModelClass model[5];

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