[MATLAB基础] text错误！？ - MATLAB爱好者论坛-LabFans.com

dazhangyu · 2011-03-06, 15:54

代码如下：
xPic=a;yPic=b; %a,b是实数，可能是正，也可能是负
plot(xPic,yPic,'pr','markersize',8,'MarkerFaceColor','r');%画点
str_ls=['(',num2str(xPic),',',num2str(yPic),')'];%点坐标字符串
text(xPic,yPic,str_ls);%%在图上标出点的坐标

问题：

每次必须重启MATLAB r2008, 否则报错：

??? Subscript indices must either be real positive integers or logicals.

为什么呢？

2011-03-06, 15:54	#1
dazhangyu 初级会员注册日期: 2009-06-22 帖子: 9 声望力: 0	text错误！？代码如下： xPic=a;yPic=b; %a,b是实数，可能是正，也可能是负 plot(xPic,yPic,'pr','markersize',8,'MarkerFaceColor','r');%画点 str_ls=['(',num2str(xPic),',',num2str(yPic),')'];%点坐标字符串 text(xPic,yPic,str_ls);%%在图上标出点的坐标问题：每次必须重启MATLAB r2008, 否则报错： ??? Subscript indices must either be real positive integers or logicals. 为什么呢？