Question

如果A是一个矩阵，其第二列（A(:,2)）代表不同"categories"的标签：

A =     
    { 3x2 cell}    [  1]
    { 2x2 cell}    [  2]
    { 3x2 cell}    [  3]
    { 4x2 cell}    [  4]

并且每个"category"都包含一些"numbers"，其分类为"sub-categories"。这意味着A{i}(:,2)是"sub-categories"的标签。例如：

%copy-paste A into MATALB

A{1} =  {[2.5]    [1];  % sub-category is [A]
         [1.49]   [2];  % sub-category is [B]
         [0.35]   [3]}; % sub-category is [C]

A{2} =  {[3.8]    [1];  % sub-category is [A]
         [1.09]   [2]}; % sub-category is [B]

A{3} =  {[6.95]   [1];  % sub-category is [A]
         [7.04]   [2];  % sub-category is [B]
         [2.85]   [3]}; % sub-category is [C]

A{4} =  {[5.5]    [1];  % sub-category is [A]
         [3.1]    [2];  % sub-category is [B]
         [6.76]   [3];  % sub-category is [C]
         [9.8]    [4]}; % sub-category is [D]

A=A.'

A{1,2}=1;
A{2,2}=2;
A{3,2}=3;
A{4,2}=4

目标（B）是根据"numbers"标签（A）对"sub-category" （2.5,1.49等）进行分类，B，C和D）。此外，最重要的一点是，只应对那些彼此相邻的"sub-categories"进行分类。这意味着，应该在同一个组"numbers"中选择"sub-category"，并且只在下一个和上一个"categories" （1,2,3和4）中搜索它们）即可。因此，在我们的示例中，我们希望得到：

%  First column shows the number
% Second column shows the sub-category
%  Third column shows the category

  % For [2.5] which has sub-category "A" or better to say "[1]", 
  % it has only one neighborhood in category [2]:
B{1}=
  [2.5]    [1]     [1]
  [3.8]    [1]     [2]

  % For [1.49] which has sub-category "B" or it is better to say "[2]", 
  % it has also one neighborhood in category [2]:
B{2}=
  [1.49]   [2]     [1]
  [1.09]   [2]     [2]

 % For [2.5] which has sub-category "A" or it is better to say "[1]", 
 % it has two neighborhood in category [2] & [3]:
B{3}=
  [2.5]    [1]     [1]
  [3.8]    [1]     [2]
  [6.95]   [1]     [3]

 % For [1.49] which has sub-category "B" or it is better to say "[2]", 
 % it has two neighborhood in category [2] & [3]:
B{4}=
  [1.49]   [2]     [1]
  [1.09]   [2]     [2]
  [7.04]   [2]     [3]

 % For [2.85] which has sub-category "C" or it is better to say "[3]", 
 % it has one neighborhood in category [4]:
B{5}=
  [2.85]   [3]     [3]
  [6.76]   [3]     [4]

 % For [6.95] which has sub-category "A" or it is better to say "[1]", 
 % it has two neighborhood in category [2] & [4]:
B{6}=
  [6.95]   [1]     [3]
  [3.8]    [1]     [2]
  [5.5]    [1]     [4]

 % For [5.5] which has sub-category "A" or it is better to say "[1]", 
 % it has one neighborhood in category [3]:
B{7}=
  [5.5]    [1]     [4]
  [6.95]   [1]     [3]

 % For [9.8] which has sub-category "D" or it is better to say "[4]", 
 % there is no number with the same label:
B{8}=
   [9.8]   [4]     [4]

 % And finally, for [0.35]; although, there are some number with the same label, 
 % there is no neighborhood in the next category( means category 2):
B{9}=
   [0.35]   [3]    [1]

为了澄清问题，我被要求添加一些解释。因此，首先，我们应该搜索每个数字的"sub-category"标签。然后，在具有相同标签的那些数字中，我们需要检查他们是否在下一个或后一个"category"中具有相同"sub-category"的邻居。如果正确的代码可能用cellfun或bsxfun函数编写而不是使用循环，那将是很好的，因为它可能更有效。感谢

在MATLAB中对具有相同标签和相同邻域的数字进行分类

0 个答案: