MATLAB tutorials:MATLAB Fundamentals may have a wrong answer
显示 更早的评论
Visualizing Data in 2D and 3D > Customized Annotations > (3/3) Adding Specialized Annotations
Task 2
The offical answer is
ylabel(yTxt)
But I think the right answer is
clear ylabel
ylabel(yTxt)
Although I think "clear ylabel" should not be necessary.
采纳的回答
I do not think you are right.
ylabel (find the link here) is not a variable but a command. So you do not need to clear it unless you have a variable named "ylabel".
last = 4;
r = 0:0.1:last;
A = pi*r.^2;
plot(r,A)
xlabel("r");
yTxt = ["Area";"\pi r^2"];
ylabel("Hello");
2 个评论
XIAO
2023-5-26
You will find that a number of answers on the topic do mention clearing ylabel or xlabel.
The reason is simply that it's very common that users accidentally create a variable by the same name and then wonder why xlabel() and ylabel() don't work. When that happens, one has to clear the variable in order to use the function of the same name.
Just like size(), image() and title(), xlabel() is one of many functions with a name that makes a very obvious and convenient variable name. These things happen.
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Mathematics 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
