matlab - Plotting and saving a plot in a loop after the entire loop is done -


i need keep updating plot within loop because doing linear regression each segment in space. can fine , display correct plot. don't seem able save final plot file. code looks like:

for = 1:slabs      %.....some looped results here, shortened brevity.....      p = polyfit(collectcoord, collecttemp, 1);     t2 = floor(min(collectcoord)) : 0.1 : ceil(max(collectcoord));     y2 = polyval(p,t2);      h = plot(collectcoord, collecttemp, 'o', t2, y2);     xlabel('x-coordinate')     ylabel('temperature')     axis([-8 8 50 800])     hold on      end  filename = [folder 'plot' num2str(stepcount) '.jpg']; saveas(h, filename);

what doing wrong here, or there better way of saving plot?

you're calling saveas() on handle line plotted. need supply figure handle:

f = figure();  stuff;  saveas(f, 'file.jpg'); or saveas(gcf(), 'file.jpg');

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