Azzera filtri
Azzera filtri

How to get the two outputs from "function"

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I have the below code which needs to provide both nodes and connectivity matrices. The formulation and for-loop is all correct I believe but I'm only getting the nodes matrix but not the connectivity matrix. If I remove the semicolon after connectivity(:,i) = [p,q], I'm getting matrices for all the iterations. All I need is the output to have final nodes and connectivity matrices like in the image attached. I'm using a N value of 6 and R value of 1. It's easy I believe but I'm not thinking straight. Help much appreciated. Thank you!
function [nodes, connectivity] = stat(N, R)
nodes = zeros(2,N);
connectivity = zeros(2,N);
for i=1:N
a = (360/N)*(pi/180)*(i-1);
x = R*cos(a);
y = R*sin(a);
nodes(:,i) = [x;y];
p = i;
q = i+1;
if q>N
q=1;
end
connectivity(:,i) = [p;q];
end
end
  2 Commenti
Mohammad Abouali
Mohammad Abouali il 18 Gen 2016
On my system your function gives back both nodes and connectivity:
[nodes, connectivity] = stat(10, pi)
nodes =
3.1416 2.5416 0.9708 -0.9708 -2.5416 -3.1416 -2.5416 -0.9708 0.9708 2.5416
0 1.8466 2.9878 2.9878 1.8466 0.0000 -1.8466 -2.9878 -2.9878 -1.8466
connectivity =
1 2 3 4 5 6 7 8 9 10
2 3 4 5 6 7 8 9 10 1
PVR
PVR il 18 Gen 2016
I only got nodes as output, that too it doesn't say nodes, it says "ans". Can you help me if there's some change in settings to get the output like yours.

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Risposta accettata

Walter Roberson
Walter Roberson il 18 Gen 2016
I suspect you are not invoking it correctly. Be sure to use two outputs when you call it:
[n, c] = stat(N, R)
  2 Commenti
PVR
PVR il 18 Gen 2016
You mean in the end?
Image Analyst
Image Analyst il 18 Gen 2016
Huh? What "end"? In your main program stat calls stat() of course. You're probably doing
stat(N, R)
and not
[n, c] = stat(N, R)
like Walter said.

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