Excluding NaN from Convhull calculation

3 次查看（过去 30 天）
William Sheehan
William Sheehan 2018-7-29
回答： Image Analyst 2018-7-29
Is there any way to carry out the 'convhull' function without removing NaN from the data. I know I could just remove a whole column or row that contains NaN but I would rather not do that. Is there any way around this ?

请先登录，再回答此问题。

采纳的回答

Image Analyst
Image Analyst 2018-7-29
Just use isnan() to remove points with a nan in them. Why not? That's how everyone would do it. Why not you? What's the reluctance to do that???
nanRows = any(isnan(xy), 2); % xy is N rows by 2 columns.
xy(nanRows, :) = [];
vertexIndices = convhull(xy(:, 1), xy(:, 2));
xHull = xy(vertexIndices, 1);
yHull = xy(vertexIndices, 2);

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 MATLAB 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by