matlab bar更改颜色

dataT=zeros(26,26);
for i=1:26
    dataT(27-i,27-i)=weights(i);
end 
figure;
set (gcf,'WindowStyle','normal','Position', [500,400,700,300],'color','w');
i=26;
while i>=1
bar(dataT(i,:),'FaceColor',[.69 .69 .69],'BarWidth',0.8);
hold on
i=i-1;
bar(dataT(i,:),'FaceColor',[.85 .85 .85],'BarWidth',0.8);
hold on
i=i-1;
end

text(1,0.4,‘RMS’,‘Rotation’,90)%画出竖直文本框

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