MATLAB: Plotting multiple variables in a listbox

guilistboxplot

Good Morning, I am trying to plot all variables selected in a listbox in a matlab gui. I seem to be overwriting the variables when plotting and only plotting the last one even when using the hold on command inside the loop. I also cannot figure out how to add a legend to the plot which corresponds to the variable selected in the listbox.
Any suggestions?
Thanks so much.
%Setting up string and value for desired parameters
Variable_Name = get(handles.Parameter_Listbox,'String');
Index = get(handles.Parameter_Listbox,'Value');
%Setting results plot
axes(handles.Plot)
%Creating loop for parameters choosen
for i=1:length(Index)
    Parameter(:,i)=Data(:,Index(i))
end
[j,k]=size(Parameter);
for p=1:k
    plot(Data(:,2),Parameter(:,k));
    hold on
    legend(Variable_Name(k));
    hold on
end

Best Answer

You are plotting Data(:, 2) against Data(:, Index). Is this your intention?
What about this:
Variable_Name = get(handles.Parameter_Listbox,'String');
Index = get(handles.Parameter_Listbox,'Value');
plot(Data(:,2), Data(:, index).', 'Parent', handles.Plot);
legend(Variable_Name(index));
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