degree = sum(a1~=0, 2); % 计算每个节点的度数 [~, idx] = sort(degree, 'descend'); % 按度数大小排序 x1_new = x1(idx); y1_new = y1(idx); z1_new = z1(idx); % 输出每个节点的坐标及编号 fid = fopen('node_coordinates.txt', 'w'); for i = 1:N fprintf(fid, 'Node %d: (%f,%f,%f)\n', idx(i), x1_new(i), y1_new(i), z1_new(i)); end fclose(fid);怎么把这个改成只输出xyz坐标
时间: 2023-11-28 18:50:02 浏览: 29
你只需要修改 fprintf 函数的格式化字符串即可,将 'Node %d: (%f,%f,%f)\n' 改成 '%f,%f,%f\n' 即可:
```
degree = sum(a1~=0, 2); % 计算每个节点的度数
[~, idx] = sort(degree, 'descend'); % 按度数大小排序
x1_new = x1(idx); y1_new = y1(idx); z1_new = z1(idx);
% 输出每个节点的坐标
fid = fopen('node_coordinates.txt', 'w');
for i = 1:N
fprintf(fid, '%f,%f,%f\n', x1_new(i), y1_new(i), z1_new(i));
end
fclose(fid);
```
这样修改之后,输出的文件中每行只包含一个节点的坐标,以逗号分隔,不再包含节点编号。
相关问题
已知每个节点的度数和坐标保存在degree = sum(a1~=0, 2); % 计算每个节点的度数 [~, idx] = sort(degree, 'descend'); % 按度数大小排序 x1_new = x1(idx); y1_new = y1(idx); z1_new = z1(idx); % 输出每个节点的坐标及编号 fid = fopen('node_coordinates.txt', 'w'); for i = 1:N fprintf(fid, 'Node %d: (%f,%f,%f)\n', idx(i), x1_new(i), y1_new(i), z1_new(i)); end fclose(fid);节点以概率i/N*0.1退化,i为节点度数,N为网络中节点个数。可以给出matlab代码吗
以下是根据您的要求编写的Matlab代码:
```matlab
% 假设已知节点坐标保存在x1、y1、z1三个向量中
% 假设网络中节点个数为N
% 计算每个节点的度数
degree = sum(a1~=0, 2);
% 节点以概率i/N*0.1退化,i为节点度数
prob = degree./(N*10);
% 对每个节点进行随机判断是否要退化
for i = 1:N
if rand() < prob(i)
x1(i) = 0;
y1(i) = 0;
z1(i) = 0;
end
end
% 按度数大小排序节点坐标
[~, idx] = sort(degree, 'descend');
x1_new = x1(idx);
y1_new = y1(idx);
z1_new = z1(idx);
% 输出每个节点的坐标及编号
fid = fopen('node_coordinates.txt', 'w');
for i = 1:N
fprintf(fid, 'Node %d: (%f,%f,%f)\n', idx(i), x1_new(i), y1_new(i), z1_new(i));
end
fclose(fid);
```
这段代码将会读入节点坐标和节点个数,并根据节点的度数计算每个节点的退化概率。然后对每个节点进行随机判断是否要退化,并对剩余的节点按照度数大小排序输出节点坐标及编号。
相关推荐
![pdf](https://img-home.csdnimg.cn/images/20210720083512.png)
![pdf](https://img-home.csdnimg.cn/images/20210720083512.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![](https://img-home.csdnimg.cn/images/20210720083646.png)
![application/x-rar](https://img-home.csdnimg.cn/images/20210720083606.png)
![pptx](https://img-home.csdnimg.cn/images/20210720083543.png)
![rar](https://img-home.csdnimg.cn/images/20210720083606.png)
![jpg](https://img-home.csdnimg.cn/images/20210720090814.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)