plotting a 2-colum 2d array

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William Lancelot
William Lancelot 2021-10-18
评论： William Lancelot 2021-10-18
I have a 2-d array that looks like this:
a = [1, 2; 5, 6; 10, 11; 1000, 12];
which should traslate into this
1 2
5 6
10 11
1000 12
I want to consider the first column the x-axis and the second the y- axis and plot, so I did this
plot(UIAxes, a.(2),a.(1));
but I receive the error below:
Argument to dynamic structure reference must evaluate to a valid field name.
any help please - thanks

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采纳的回答

Walter Roberson
Walter Roberson 2021-10-18
Ran in:
That syntax of using . and then a number inside (), only works for table() objects.
UIAxes = gca;
A = [1, 2; 5, 6; 10, 11; 1000, 12];
a = array2table(A);
plot(UIAxes, a.(2),a.(1));

更多回答（1 个）

David Hill
David Hill 2021-10-18
plot(a(:,1),a(:,2));

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