如何在显示非常大的数组时挂起MATLAB IDE？ [英] How to interrupt MATLAB IDE when it hangs on displaying very large array?

问题描述

假设我正在使用MATLAB IDE并且碰巧在我的工作空间中有一些非常大的对象（例如500k +元素的数组）。现在，假设我愚蠢地偶然双击其中一个非常大的变量，这会触发对数组编辑器的加载。不幸的是，对于这么大的数组，MATLAB只是挂起。

Suppose I'm using the MATLAB IDE and happen to have some very large objects in my workspace (e.g. arrays of 500k+ elements). Now, suppose that I stupidly and accidentally double click on one of these very large variables, which triggers a load to the array editor. Unfortunately, with arrays this big, MATLAB just hangs.

我尝试过CTRL + C，CTRL + BREAK，CTRL + D，但似乎没有人能够中断IDE的行为。我知道我可以强制matlab退出，但是首先将所有这些变量读入工作区会花费很多时间，我可能在编辑器窗口中有未保存的更改等。

I've tried CTRL+C, CTRL+BREAK, CTRL+D, but none seem able to interrupt the behavior of the IDE. I know I can force matlab to quit, but reading all of those variables into the workspace in the first place takes a lot of time, and I may have unsaved changes in an editor window, etc.

推荐答案

我找到了一种方法，但它不是最好的，它需要更改路径并返回一次才能获得原始 openvar的句柄

I found a way, but it's not the best, it requires a change of path and back once to get a handle to the original openvar

function openvar(name,array)
    persistent org_openvar
    if isempty(org_openvar)
        curdir=pwd;
        cd(fullfile(matlabroot,'toolbox/matlab/codetools'));
        org_openvar = @openvar;
        cd(curdir);
    end

    if numel(array)>1e5
        if strcmp(questdlg(sprintf('Opening ''%s'' which has %d elements.\n\nAre you sure? This is gonna take a while!',name,numel(array)), ...
        'Variable editor','Yes','Cancel','Cancel') , 'Yes')
                org_openvar(name,array)
            end
    else
        org_openvar(name,array)
    end
end

获得该处理是最大的问题，称它没关系。如果内置 openvar ，您可以使用函数内置：

getting that handle is the biggest problem, calling it is just fine. If openvar would be built in, you could use the function builtin:

builtin('openvar',name,array)

但不幸的是不是这样:(

str2func 结合完整路径也不起作用，至少我没有让它起作用。 ..

but this is unfortunately not the case :(
str2func in combination with the complete path also doesn't work, at least I don't get it to work...

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