How to add nodes and display it as a graph??

4 次查看（过去 30 天）
Aswin Sandirakumaran
编辑： Stephan 2018-6-28
G = graph();
j = [1,2,3,4,5];
for i = 1:length(i)
H = addnode(G,j(i));
plot(H);
end
QUESTION: How to plot graph with all the nodes of j ?*
MY PROBLEM IS: IT just adds the node 1 which is 1, but it doesnt add other nodes 2,3,4,5
  1 个评论
Guillaume
Guillaume 2018-6-28
编辑：Guillaume 2018-6-28
What exactly are you trying to do? Why are you adding the nodes in a loop rather than all at once (or better create G with the nodes)? Are the j values supposed to be node ids or the number of nodes to add (so is it 5 or 15 nodes that need adding)?

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Stephan
Stephan 2018-6-28
编辑：Stephan 2018-6-28
Hi,
one issue is, that you wrote:
for i = 1:length(i)
instead of:
for i = 1:length(j)
Since length(i) is equal to 1 you only got one node. Additionally the plot command can be set behind the for loop.
P.S.: It is good practice not to use i and j as Counter variables, because that can cause Trouble using complex numbers.
For a more detailled answer to this topic see the answer from Guillaume below.
Best regards
Stephan
  2 个评论
Guillaume
Guillaume 2018-6-28
编辑：Guillaume 2018-6-28
There are a lot more problems with the original code than just length(j) vs length(i) unfortunately.
Note that while the answer appears to do the correct thing, what it actually does is exactly equivalent to:
G = graph;
j = 1:5;
H = addnode(G, i(end));
plot(H);
This is because
  • H is overwritten at each step of the loop, discarding the result of all but the last iteration
  • addnode(G, x) adds x nodes to G. It does not add a node with number x to G
Stephan
Stephan 2018-6-28
Thanks for the correction - I withdraw the contribution.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Graphics Performance 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by