How to shade an area in a multiple plot figure?

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Sahil Patel 2020-7-3

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https://ww2.mathworks.cn/matlabcentral/answers/558947-how-to-shade-an-area-in-a-multiple-plot-figure

评论： KSSV 2020-7-3

I am using "addaxis" package to plot more than 2 sets of data of varying magnitudes in a single plot and i want one of the areas under the curve to be shaded/filled. How can i do that? Is there another way to do this? Here is what ive tried currently:

figure
plot(pems_31(:,1),pems_31(:,18),'b','linewidth',1)
addaxis(pems_31(:,1),pems_31(:,12),'r','linewidth',1)
addaxis(pems_31(:,1),pems_31(:,22),[0 120],'k','linewidth',1)
fill(pems_31(:,1),pems_31(:,22),'g')
xlabel('\bf Time rural [s]')
addaxislabel(2,'PN ')
addaxislabel(1,'\bf Engine Speed [RPM]')
addaxislabel(3,'\bf Velocity [km/h]')