open saved figures and plot daily data in one graph

Dear Matlab Community,

I am trying to create one graph from previously saved 2 figures using the same x axis.

x axis shows '1 Jan' from two different years. My aim to see the data in one plot, however I do not know how to combine them. I am trying to use the below script:

fig1 = openfig('Figure1.fig');

fig2 = openfig('Figure2.fig');

xlimits = get(fig1.CurrentAxes, 'XLim');

xticks = get(fig1.CurrentAxes, 'XTick');

% Create a new figure with a single axes object

figure;

ax = axes;

% Apply the x-axis limits and tick values from Figure 1 to the new axes object

set(ax, 'XLim', xlimits);

set(ax, 'XTick', xticks);

% Copy the plots from each figure to the new axes object

copyobj(allchild(get(fig1,'CurrentAxes')), ax);

hold on;

copyobj(allchild(get(fig2,'CurrentAxes')), ax);

hold off

% Set the axis labels and legend as needed

xlabel('Time');

ylabel('Data 1');

title('2011 - 2012 Comparison');

legend('2011', '2012');

Here I have found a similar question but I am totally confused. I really appreciate your help.

https://de.mathworks.com/matlabcentral/answers/1923310-plot-several-time-series-data-stacked-in-one-graph

Best, Cakil

Answer 1

[Eswaramoorthy]

Hi,

Here is the code for your graph:

fig1 = openfig('Figure1.fig');
h = findobj(gca,'Type','line')
x1 = h.XData; 
y1 = h.YData;

fig2 = openfig('Figure2.fig');
h = findobj(gca,'Type','line')
x2 = h.XData ;
y2 = h.YData;

xData=[x1',x2'];
yData=[y1',y2'];
yr=[];

% Storing dates in MDdt1 after setting the year of all points to
% '0001', so that all points can be plotted in the same graph.
% Storing years in the array 'yr', which is later used for legend.
for k = 1:size(xData,2)
    [y,m,d] = ymd(xData(:,k));
    MDdt1(:,k) = datetime(1,m,d);
    yr = [yr,string(y(1))];
end

figure
hold on
for k = 1:size(MDdt1,2)
    plot(MDdt1(:,k), yData(:,k), 'DisplayName',yr(k));
end
grid
xtickformat('dd/MM')
legend('Location','best')
xlabel('dd/MM')
ylabel('Daily Count')

Hope this helps!