MATLAB實例：繪製條形圖

MATLAB實例：繪製條形圖

做者：凱魯嘎吉 - 博客園 http://www.cnblogs.com/kailugaji/

用MATLAB繪製條形圖，自定義條形圖的顏色、圖例位置、橫座標名稱、顯示條形圖上面的數字，並保存圖片到指定位置。

1. demo.m

clear
clc
Y=[0.6	0.7	0.75
0.9	0.91	0.92
0.9	0.92	0.95
0.84	0.86	0.87];
figure
X=1:4;
h=bar(X,Y);
% 設置條形圖顏色
set(h(1),'FaceColor',[1,1,0])
set(h(2),'FaceColor',[0,0.9,0.3])
set(h(3),'FaceColor',[1,0,0.3])
ylim([0,1]);
ylabel('Accuracy');
xlabel('Datasets');
legend('Method 1','Method 2','Method 3', 'FontSize',8,'FontName','Times New Roman', 'Location', 'northwest'); %修改圖例
set(gca,'xtick',1:4);
set(gca,'XTickLabel',{'dataset 1','dataset 2','dataset 3','dataset 4'},'FontSize',12,'FontName','Times New Roman'); %修改橫座標名稱、字體
Y_1=roundn(Y,-2);
for i = 1:length(X)
    text(X(i)-0.25,Y_1(i,1),num2str(Y_1(i,1)),'HorizontalAlignment','center','VerticalAlignment','bottom','FontSize',8,'FontName','Times New Roman');
    text(X(i),Y_1(i,2),num2str(Y_1(i,2)),'HorizontalAlignment','center','VerticalAlignment','bottom','FontSize',8,'FontName','Times New Roman');
    text(X(i)+0.25,Y_1(i,3),num2str(Y_1(i,3)),'HorizontalAlignment','center','VerticalAlignment','bottom','FontSize',8,'FontName','Times New Roman');
end
saveas(gcf,sprintf('條形圖.jpg'),'bmp'); %保存圖片

2. 結果

折線圖做圖見：MATLAB做圖