How to get all value with for loop

I want to extract my value(str) under this loop

But he always grabs the last value, not all values

How to modify it?

[Nodelocation] = textread('observe/mdNodeLocationXY_axisforGUI2.txt');
[UElocation] = textread('observe/mdUELocationforGUI2.txt');
[AssignCell] = textread('observe/AssignCell.txt');

scatter(Nodelocation(:,2),Nodelocation(:,3),150,'k','^','filled')
hold on;
inputNodeID =0; % 0 v 1


for ii=1:length(Nodelocation(:,1))
    for jj=1:length(UElocation(:,1))
        if AssignCell(jj,2) == Nodelocation(ii,1)
            if Nodelocation(ii,1) == 0 && ii == inputNodeID+1
                a = scatter(Nodelocation(ii,2),Nodelocation(ii,3),150,[1 0 0],'^','filled');
                hold on;
                b = scatter(UElocation(jj,2),UElocation(jj,3),50,[0 0.5 0],'x');
                str = string(AssignCell(jj,1));
                c = text(UElocation(jj,2),UElocation(jj,3),str);
            end  
            if Nodelocation(ii,1) == 1 && ii == inputNodeID+1
               a = scatter(Nodelocation(ii,2),Nodelocation(ii,3),150,[1 0 0],'^','filled');
                hold on;
                b = scatter(UElocation(jj,2),UElocation(jj,3),50,[0 0.5 0],'x');
                str = string(AssignCell(jj,1));
                c = text(UElocation(jj,2),UElocation(jj,3),str);
            end
        end
    end
end

Answer 1

[Alan Stevens]

Use a counter? Something like the following perhaps:

counter = 0;
for ii=1:length(Nodelocation(:,1))
    for jj=1:length(UElocation(:,1))
        if AssignCell(jj,2) == Nodelocation(ii,1)
            if Nodelocation(ii,1) == 0 && ii == inputNodeID+1
                a = scatter(Nodelocation(ii,2),Nodelocation(ii,3),150,[1 0 0],'^','filled');
                hold on;
                b = scatter(UElocation(jj,2),UElocation(jj,3),50,[0 0.5 0],'x');
                counter = counter+1;
                str(counter) = string(AssignCell(jj,1));
                c = text(UElocation(jj,2),UElocation(jj,3),str);
            end  
            if Nodelocation(ii,1) == 1 && ii == inputNodeID+1
               a = scatter(Nodelocation(ii,2),Nodelocation(ii,3),150,[1 0 0],'^','filled');
                hold on;
                b = scatter(UElocation(jj,2),UElocation(jj,3),50,[0 0.5 0],'x');
                counter = counter+1;
                str(counter) = string(AssignCell(jj,1));
                c = text(UElocation(jj,2),UElocation(jj,3),str);
            end
        end
    end
end

or possibly:

str = [];
for ii=1:length(Nodelocation(:,1))
    for jj=1:length(UElocation(:,1))
        if AssignCell(jj,2) == Nodelocation(ii,1)
            if Nodelocation(ii,1) == 0 && ii == inputNodeID+1
                a = scatter(Nodelocation(ii,2),Nodelocation(ii,3),150,[1 0 0],'^','filled');
                hold on;
                b = scatter(UElocation(jj,2),UElocation(jj,3),50,[0 0.5 0],'x');
                str = [str; string(AssignCell(jj,1))];
                c = text(UElocation(jj,2),UElocation(jj,3),str);
            end  
            if Nodelocation(ii,1) == 1 && ii == inputNodeID+1
               a = scatter(Nodelocation(ii,2),Nodelocation(ii,3),150,[1 0 0],'^','filled');
                hold on;
                b = scatter(UElocation(jj,2),UElocation(jj,3),50,[0 0.5 0],'x');
                str = [str; string(AssignCell(jj,1))];
                c = text(UElocation(jj,2),UElocation(jj,3),str);
            end
        end
    end
end