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关于混合型价值矩阵的储存问题
原标题:Regarding storage issue for mixed-type value matrix
  • 时间:2011-11-23 04:31:19
  •  标签:
  • matlab

我的节目中有一席之地,每次播送期间都将产生一个身份证。 我想将这些身份证储存在两个层面,即A。 A栏第一栏储存的是频率,即A(1,1) = 1和A(2,1)= 2. A栏第二栏储存了每台电离层生成的电离层,即A(1,2)储存在第一个电离层生成的电离层。 欺骗性部分是,这些身份证可以是数字价值,也可以是扼杀。 例如,A(1,2)=12345;A(2,2)=bcde

我应当利用哪一种数据结构储存这种混合价值矩阵?

最佳回答

你们有两个很好的选择,一个单元或一系列结构。

  1. To use a cell array you need to use braces:

    A{1,1} = 1;
    A{2,1} = 2;
    A{1,2} = 12345;
    A{2,2} =  abcd ;
    

    你们不能使用大多数带有细胞阵列的病媒代码,尽管你们能够将数字子集改为数字阵列,例如:

    col1 =  cell2mat(A(:,1));
    
  2. 为了使用一系列结构,你需要界定领域。 这对你来说有好处,可以把数据一栏命名。

    A(1).iteration = 1;
    A(2).iteration = 2;
    A(1).result = 12345;
    A(2).result =  abcd ;
    

    查阅单一数据浏览,使用A(1),如此。

    >> A(1)
    ans = 
        iteration: 1
        result: 12345
    

    查阅数据一栏,使用括号或斜体

    >> [A.iteration]  %This results a numeric array, or an error if not possible
    ans =
         1     2
    >> {A.result}  %This returns a cell array, as discussed above.
    ans = 
        [12345]     abcd 
    

你们使用哪一种选择取决于你的任务的性质,以及什么方法更适合你的风格。 我通常从一个单元开始,并最终转换成一系列构件,以利用指定领域。

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