Assigning names to values in vector
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I would like to keep track on my vectors and need to assign a name to each entry.
For example: xN=[2 1]=[x1 x2], or something like it.
Is it possible to assign the values a handle of some sort? I'm switch the values around, and I don't know beforehand were the going to end up.
So the name should not interfere with the algebraic operations
2 个评论
Steven Lord
2019-11-4
I assume this is only one step in a larger project. If you describe that larger project (why are you "switch [sic] the values around"?) we may be able to offer an alternative way to solve the problem, either by doing this tracking or avoiding the need to track.
Sebastian Daneli
2019-11-4
回答（1 个）
Walter Roberson
2019-11-3
No, it is not possible to assign a handle to a value. Use symbolic variable names and subs() as needed. For example,
x = sym('x', [1 5]);
y = sum(x.^(0:4));
xvals = randi([-9 9], 1, 4);
subs(y, x, xvals)
xvals2 = xvals(randperm(length(xvals)));
subs(y, x, xvals2)
3 个评论
Sebastian Daneli
2019-11-3
编辑：Sebastian Daneli
2019-11-3
Walter Roberson
2019-11-4
Of course there are ways. I already linked you to an explanation of why most of those ways are not good mechanisms to use.
Sebastian Daneli
2019-11-4
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