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怎么利用语句修改MATLAB图的横坐标

来源:学生作业帮 编辑:作业帮 分类:综合作业 时间:2024/05/11 15:25:23
怎么利用语句修改MATLAB图的横坐标
画图程序如下所示:

  x1 = datenum('07:00:00');
x2 = datenum('23:59:59');
x = linspace(x1,x2,18);
plot(x,1:18,'-o','linewidth',1.5);hold on;
plot(x,1:18,'-+','linewidth',1.5);legend('工作日','周末')
datetick('x',13); 
出图结果为:

现在要怎么修改程序才能把横坐标变为每三个小时一个间隔,即横坐标变为06:00:00,09:00:00,12:00:00,15:00:00,18:00:00,21:00:00,00:00:00
x1 = datenum('07:00:00');
x2 = datenum('23:59:59');
x = linspace(x1,x2,18);
plot(x,1:18,'-o','linewidth',1.5);hold on;
plot(x,1:18,'-+','linewidth',1.5);legend('工作日','周末')
set(gca,'xtick',735600.25:0.125:735601)
set(gca,'xticklabel',{'06:00:00','09:00:00','12:00:00','15:00:00','18:00:00','21:00:00','00:00:00'})