Loop Question for particle

Question

shah nawaz 2020-5-13

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/525259-loop-question-for-particle

回答： Reshma Nerella 2020-7-24

I have following data I want to use first 2 columns in a for loop to detect the particles for which there is no contact. first 2 columns show 2 particles which are in contact. How can I get an output in tabular form. Basically i want to detect those particles for which there is no contact. Particles are 484 and total number of contacts is 956.

  324  0.720141865396207E+00  0.000000000000000E+00  0  0.000000000000000E+00
  439  0.940050831127248E+00  0.000000000000000E+00  0  0.000000000000000E+00
  441  0.131609998985588E+01  0.000000000000000E+00  0  0.000000000000000E+00
   25  0.363379567116406E+00 -0.000000000000000E+00  0  0.000000000000000E+00
   89  0.753090369602638E+00  0.000000000000000E+00  0  0.000000000000000E+00
  109  0.851303474754872E+00  0.000000000000000E+00  0  0.000000000000000E+00
  220  0.898508917122121E+00 -0.000000000000000E+00  0  0.000000000000000E+00
    6  0.890341369366110E+00  0.000000000000000E+00  0  0.000000000000000E+00
   26  0.283864328102457E+00  0.000000000000000E+00  0  0.000000000000000E+00

Data = importdata('dem22.txt');
Particle1 = Data(:,1);
Particle2 = Data(:,2);
number_of_particles = 484
total_contacts = length(Particle1);
Contact = Particle1+Particle2
Table = cell(956,2);
for i = 1:1:ncont;
    j = 1:npa;
    Contact(ncont,1) = i;
    i = i+1;
    Contact(ncont,2) = j;
    j=j+1;
    Table(i,:) = {i j};
    fprintf('%d %d\n', Table{i,:});
end
T = table(Contact,npa);