Matlab - 迭代插入/附加行到矩阵 [英] Matlab - insert/append rows into matrix iteratively

问题描述

如何在matlab中我可以交互追加矩阵行？

例如让我说空矩阵：

  m = []; 
  

当我运行for循环时，我得到了需要插入矩阵的行。 p>

例如：

  for i = 1：5 
 row = v-x; ％例如得到1 2 3 
％m.append（row）？ 
 end 
  

所以在插入后应该看起来像这样：

  m = [
 1 2 3 
 3 2 1 
 1 2 3 
 4 3 2 $ b在大多数编程语言中，您可以简单地将行追加到数组中/矩阵。但是我发现在matlab中很难做到。
 new_row]; 在你的循环中。如果你已经知道总行号，定义 m = zeros（row_num，column_num）; ，那么在你的循环中 m（i，:) = new_row;  
 
How in matlab I can interactively append matrix with rows?

For example lets say I have empty matrix:
m = [];
and when I run the for loop, I get rows that I need to insert into matrix.

For example:
for i=1:5
  row = v - x; % for example getting 1 2 3
  % m.append(row)?
end
so after inserting it should look something like:
m = [
     1 2 3
     3 2 1
     1 2 3
     4 3 2
     1 1 1
]
In most programming languages you can simply append rows into array/matrix. But I find it hard to do it in matlab.
解决方案
m = [m ; new_row]; in your loop. If you know the total row number already, define m=zeros(row_num,column_num);, then in your loop m(i,:) = new_row;

                        
这篇关于Matlab  - 迭代插入/附加行到矩阵的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！