Add more data and draw a line through the points

Question

Auryn_ 2017-6-21

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/345651-add-more-data-and-draw-a-line-through-the-points

回答： Auryn_ 2017-6-21

Hello, I have created a function and each time it gives me a point of data. I use hold on/hold all for plotting these results and I obtain a series of points. Is there a way to join this points through a line for the final plot? Thanks in advance.

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Adam 2017-6-21

Stored the results of calling your function in an array and then just plot the whole array of results in one instruction afterwards.

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Jan 2017-6-21

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/345651-add-more-data-and-draw-a-line-through-the-points#answer_271412

编辑：Jan 2017-6-21

在 MATLAB Online 中打开

Result = zeros(1, 100);
for k = 1:100
  Result(k) = rand;   % or your external function
end
plot(Result)

Or if there is any good reason to create the diagram in steps:

figure;
axes;
LineH = line(1, 1);
for k = 1:100
  YourSubFunction(LineH);
  pause(0.02);
  drawnow;
end
function YourSubFunction(LineH)
oldX = get(LineH, 'XData');
oldY = get(LineH, 'YData');
X    = rand;
Y    = oldY(end) + 0.5 + rand;
set(LineH, 'XData', [oldX, X], 'YData', [oldY, Y]);
end