Plot connected vertical points with different marks

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Rub Ron
Rub Ron 2021-8-20
评论： Image Analyst 2021-8-20
I have a vector x=[ 1 2 3 4], and a matrix of size: 3x4.
I want to plot something like this:
Update: the number of vertical points can be different (in my example I used 3, but they can be from 2 to 5).
Update 2: "x" mark is not the center, it might happen than "x" mark is lower or higher than the other two points, for a particular x value.
Any ideas?

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采纳的回答

Star Strider
Star Strider 2021-8-20
Ran in:
Try something like this —
x=[ 1 2 3 4];
M = rand(3,4);
Mx = max(M);
Mn = min(M);
figure
plot(x, Mx, 'd')
hold on
plot(x, Mn, 'o')
plot([x; x], [Mx; Mn], '--k')
hold off
grid
xlim([0 5])
.I am not certain what the ‘x’ markers in the centres of the lines represent, so I did not include them. However they could llikely be added with one plot call.
.
  4 个评论
显示 2更早的评论
Star Strider
Star Strider 2021-8-20
Ran in:
@Rub Ron — My code can likely be adapted reasonably easily to any size matrix and compatible-size independent variable vector. It would help to have an actual matrix and to know what you want to display. The ‘x’ markers are then just another plot or scatter call within the hold block.
@Kevin Holly — Thank you!
Adding the ‘x’ markers to my previous code —
x=[ 1 2 3 4];
M = rand(3,4);
Mx = max(M);
Mn = min(M);
xv = rand(size(x));
figure
plot(x, Mx, 'd')
hold on
plot(x, Mn, 'o')
plot([x; x], [Mx; Mn], '--k')
plot(x, xv, 'xm', 'MarkerSize',10) % Added
hold off
grid
axis([0 5 0 1]) % Optional
.

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更多回答（1 个）

Image Analyst
Image Analyst 2021-8-20
Try this:
markerSize = 14;
lineWidth = 2;
x = [1 2 3 4]
y = 0.1 + 0.4 * rand(3, 4)
[rows, columns] = size(y)
for col = 1 : columns
yTop = max(y(:, col));
yBottom = min(y(:, col));
yMid = setdiff(y(:, col), [yTop; yBottom]);
% Plot line
plot([x(col), x(col)], [yBottom, yTop], 'b-', 'LineWidth', 3);
hold on;
% Plot markers
plot(x(col), yTop, 'bd', 'LineWidth', lineWidth, 'MarkerSize', markerSize);
plot(x(col), yBottom, 'bo', 'LineWidth', lineWidth, 'MarkerSize', markerSize);
plot(x(col), yMid, 'bx', 'LineWidth', lineWidth, 'MarkerSize', markerSize);
end
grid on;
  2 个评论
Rub Ron
Rub Ron 2021-8-20
Hi, thank you. The number of vertical points can be different, from 2 to 5 (in my example I used 3). Can it be generalized? Sorry if I was not explicit.
Image Analyst
Image Analyst 2021-8-20
Yeah, that was not specified. But it looks like you've accepted an answer so I guess you got it all figured out for the case of variable number of rows.

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