How do I add data to multiple figure windows in one loop?

I want to make a loop where I plot two different parameters on two different figure windows, such that each iteration of the loop adds one plot to one window and another plot to a second window. For the one plot case I am using

fig4 = figure;
    for ii = 1:length(plotmatrixcell)        
        plot(plotmatrixcell{ii}{2}(:,1),plotmatrixcell{ii}{2}(:,2),'r*')
        hold on
    end
    

which plots the data from each loop in the same figure window. I want to have something like this:

    fig4 = figure;
    fig5 = figure;
    for ii = 1:length(plotmatrixcell)
        % fig4        
        plot(plotmatrixcell{ii}{2}(:,1),plotmatrixcell{ii}{2}(:,2),'r*')
        xlabel('Distance from VCSEL (mm)')
        ylabel('Beam radius (mm)')
        hold on
        % fig5
        currentfit = polyfit(plotmatrixcell{ii}{2}(:,1),plotmatrixcell{ii}{2}(:,2),1);
        fitplot = polyval(currentfit, 0:10);
        plot(0:10,fitplot,'k.--')
        hold on
    end
    

so that the first plot in each iteration is in one figure window and the second plot in each iteration is in a second figure window. How can I do this?

Answer 1

[Rik]

Use explicit handles:

fig4=figure(4);
fig5=figure(5);
%'NextPlot','add' is equivalent to hold('on')
ax4=axes('Parent',fig4,'NextPlot','add');
ax5=axes('Parent',fig5,'NextPlot','add');
for ii = 1:length(plotmatrixcell)
        % fig4        
        plot(plotmatrixcell{ii}{2}(:,1),plotmatrixcell{ii}{2}(:,2),'r*',...
            'Parent',ax4)
        % fig5
        currentfit = polyfit(plotmatrixcell{ii}{2}(:,1),plotmatrixcell{ii}{2}(:,2),1);
        fitplot = polyval(currentfit, 0:10);
        plot(0:10,fitplot,'k.--',...
            'Parent',ax5)
end
xlabel(ax4,'Distance from VCSEL (mm)')
ylabel(ax4,'Beam radius (mm)')