how to find witch points are under the line??i have a number of points that i define as a X,Y and i have wrotten the under steps.

1 次查看（过去 30 天）

显示更早的评论

Mili Kian 2021-2-27

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/757819-how-to-find-witch-points-are-under-the-line-i-have-a-number-of-points-that-i-define-as-a-x-y-and-i

hi every one

i have a number of points that i define as a X,Y and i have wrotten the under steps.

x = eldof(:,10); %%x=[0,0.5,240]

y = eldof(:,11);

plot(x, y, 'b.', 'MarkerSize', 5);

grid on;

% Make line

xRedLine =unique(x);

redLine = 60+10*exp((-(xRedLine-120).^2)/100);

hold on;

plot(xRedLine, redLine, 'r+-', 'LineWidth', 2, 'MarkerSize', 2);

%xlim([0 120]);

%ylim([0 60]);

% Find values less than the red line for each x and plot a red square around them

for k = 1 : length(x)

thisX = round(x(k))

index = find(thisX >= xRedLine);

if y(k) < redLine(index);

plot(thisX, y(k), 'rs', 'MarkerSize', 5);

end

now my answer is earned something like this

and as you see the area that shown with circle its false. and that area should verified with red but ...

what can i do for that??

please help me

thanks

在 Help Center 和 File Exchange 中查找有关 Creating and Concatenating Matrices 的更多信息

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by

how to find witch points are under the line??i have a number of points that i define as a X,Y and i have wrotten the under steps.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

回答（0 个）

另请参阅

类别

标签

Community Treasure Hunt

how to find witch points are under the line??i have a number of points that i define as a X,Y and i have wrotten the under steps.

0 个评论 显示 -2更早的评论隐藏 -2更早的评论

回答（0 个）

另请参阅

类别

标签

Community Treasure Hunt

WeChat

0 个评论
显示 -2更早的评论隐藏 -2更早的评论