MATLAB: YY axis scale on plotyy

axisplotyy

hi everyone,
I am using the function plotyy in order to display dynamic of two different temperatures. Since it's two quantities in °C, I want the scales to be the same on each axis and the zero at the same level. I know wery well that I could plot the two dynamic on the same y-axis but I really want it on two different axis ! Here is the code :
 % dynamique TA et TS5
    d=d+1;
    figure (d);   [AX,H1,H2]=plotyy(meteo.data(:,Idxdate_meteo),meteo.data(:,Idx_TA),meteo.data(:,Idxdate_meteo),meteo.data(:,Idx_TS5),'plot');
        xlabel('Mois','FontSize',20);
        datetick(AX(1),'x','mmm');
        set(AX(2),'XTick',[])
        set(AX,{'ycolor'},{[0.1765 0.5294 0.9116];[0.1725 0.4353 0.1098]},'FontSize',14)
        set(H1,'color',[0.1765 0.5294 0.9116])
        set(H2,'color',[0.1725 0.4353 0.1098])
        set(get(AX(1),'Ylabel'),'String','Tair [°C]','FontSize',20)
        set(get(AX(2),'Ylabel'),'String','Tsol à 5cm [°C]','FontSize',20)
            %aligner les zeros
            maxval = cellfun(@(X) max(abs(X)), get([H1 H2], 'YData'));
            ylim = [-maxval, maxval] * 1.1;  % Mult by 1.1 to pad out a bit
            set(AX(1), 'YLim', ylim(1,:) );
            set(AX(2), 'YLim', ylim(2,:) );
And here is what I get :
X-axis doesn't need to change. I guess I have to use the axis function but I dont know how to use it to change scales of the both y-axis only. For example I want the both y-axis scales with min = -5°C and max = 50°C.
Thank you for your time, Louis

Best Answer

Try to use
 linkaxes(AX, 'xy')
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