plotting a 2-colum 2d array

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

Answer 1

[Walter Roberson]

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));

[William Lancelot]

thank you

Answer 2

[David Hill]

plot(a(:,1),a(:,2));

[William Lancelot]

thank you