How using function Stairs for a market ?

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dpb
dpb 2018-4-3
编辑:dpb 2018-4-3
S = [400 500 200]; % supply
PS = [15 25 55]; % Price supply
[PS,iPS]=sort(PS); % sort price ascending; keep in order with supply
S=S(iPS); % rearrange supply with sorted price
[PD,iPD]=sort(PD,'descend');
D=D(iPD);
figure
stairs([0 cumsum(S)],[PS PS(end)])
ylim([0 70])
hold on
stairs([0 cumsum(D)],[PD PD(end)],'r-')
yields:

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