MATLAB实例：绘制条形图

作者：凯鲁嘎吉 - 博客园 http://www.cnblogs.com/kailugaji/

用MATLAB绘制条形图，自定义条形图的颜色、图例位置、横坐标名称、显示条形图上面的数字，并保存图片到指定位置。

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);

% 设置条形图颜色

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'); %修改图例

set(gca,'xtick',1:4);

set(gca,'XTickLabel',{'dataset 1','dataset 2','dataset 3','dataset 4'},'FontSize',12,'FontName','Times New Roman'); %修改横坐标名称、字体

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('条形图.jpg'),'bmp'); %保存图片

2. 结果

折线图作图见：MATLAB作图