命名路径的含义

Question

我的老师给了我示例代码，他说一定要命名路径，我很困惑他这是什么意思

示例代码：

% Plot 1st data from file (you don't even have to open the files)
% Make sure to name the path!
\addplot+ [smooth,mark=none,name path=boundary1] table [x=Extensometer, y=Load, col sep=comma] {Data/ExampleDataSteel1.csv};