reshape,permute函数matlab

来源：学生作业帮编辑：百度作业网作业帮分类：综合作业时间：2024/05/03 21:32:17

reshape,permute函数matlab
A = [1,2,3,4;5,6,7,8;9,10,11,12;13,14,15,16];
如何得到B:
B(:,:,1) = [1,2;5,6];
B(:,:,2) = [3,4;7,8];
B(:,:,3) = [9,10;13,14];
B(:,:,4) = [11,12;15,16];

这个转换可以通过reshape、permute函数实现：
>> B=reshape(permute(reshape(A,[2 2 4]),[1 3 2]),[2 2 4])
B(:,:,1) =
     1     2
     5     6

B(:,:,2) =
     3     4
     7     8

B(:,:,3) =
     9    10
    13    14

B(:,:,4) =
    11    12
    15    16
不过,个人认为,上述实现方式的表达式比较难懂,不如直接使用cat函数：
>> B=cat(3,A(1:2,1:2),A(1:2,3:4),A(3:4,1:2),A(3:4,3:4))
B(:,:,1) =
     1     2
     5     6

B(:,:,2) =
     3     4
     7     8

B(:,:,3) =
     9    10
    13    14

B(:,:,4) =
    11    12
    15    16
再问：谢谢,如果A =[1到8;9到16;1到8;9到16;1到8;9到16;1到8;9到16]; B(:,:,1) = B(:,:,3)=[1 2 3 4;9 10 11 12;1 2 3 4;9 10 11 12]; B(:,:,2) =B(:,:,4) = [5 6 7 8;13 14 15 16;5 6 7 8;13 14 15 16];这样呢

关于MATLAB的reshape函数问题,reshape(A,[], MATLAB提示Error using reshape To RESHAPE the number of element reshape matlab To RESHAPE the number of elements must not ch matlab中的reshape命令有什么数学意义? tt=reshape(t,2,(N+1)/2)在matlab中的意思 MATLAB小问题for i=1:size(Image,3)H(:,i)=reshape(double(Image(:, matlab中这句话有错没disp=reshape(disp,[r,c])'; MAtlab中To RESHAPE the number of elements must not change. matlab中reshape（18：-1:1,3,3,2）命令中的18：-1: 我的MATLAB积分程序出现错误To RESHAPE the number of elements must not c matlab运行程序时出现To RESHAPE the number of elements must not chan MATLAB 已知：for i=1:size(Image,3)% H(:,i)=reshape(double(Image