创建一个显示二维数组索引的一维数组

Lets say, we have the following two-dimensional array in Matlab:

可以说，我们在Matlab中有以下二维数组：

A=[0 451
   0 446
   0 543
   .....]

etc. I want to create another, one-dimensional array, that will do this: For example, lets call the 1-D array B, B(1) will "show" to [0 451]. B(2) will "show" to [0 446], B(3) will "show" to [0 543] and so on.I hope that my desired result is pretty clear to anyone who could give me a bit help.

我想创建另一个一维数组，它将执行此操作：例如，让我们调用1-D数组B，B（1）将“显示”到[0 451]。 B（2）将“显示”到[0 446]，B（3）将“显示”到[0 543]，依此类推。我希望任何可以给我一点帮助的人都能清楚我想要的结果。

2 个解决方案

#1

Two ways:

两种方式：

a=1:10
split_a1=(reshape(a,2,[])).';

Access split_a1 as split_a1(1,:),...,split_a1(5,:);.

将split_a1作为split_a1（1，:)，...，split_a1（5，:) ;.

split_a2=mat2cell(a,1,2*ones(1,numel(a)/2));

Access split_a2 as split_a2{1},...,split_a2{5};.

将split_a2作为split_a2 {1}，...，split_a2 {5};进行访问。

#2

Well, what you have just set is impossible, you are mixing the arrays and the Dimensions. As you have explained it, B is 2-D, and A is 1-D. You can do what you want by doing this:

那么，你刚刚设置的是不可能的，你正在混合数组和Dimensions。正如您所解释的那样，B是2-D，A是1-D。这样做你可以做你想做的事：

j=0; 
i=1;
while i<=size(A,2)/2;
    j=j+1;
    B(i,1)=A(j);
    j=j+1;
    B(i,2)=A(j);
    i=i+1;
end

#1