number of special array in a table

1 次查看（过去 30 天）

Abo 2019-2-5

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/443345-number-of-special-array-in-a-table

评论： Guillaume 2019-2-5

Hi,

I have a table (100*1) contains different number of "2" (see the following image) and "NAN" which changing dynamically. the question is how can I count number of "2" before each "NAN"?

regrds

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Guillaume 2019-2-5

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/443345-number-of-special-array-in-a-table#answer_359640

编辑：Guillaume 2019-2-5

在 MATLAB Online 中打开

It doesn't look like you have a table. It looks like a plain vector.

Anyway,

lengthofruns = diff([1; find(isnan(yourvector)); numel(yourvector)])

Basically, find the position of all the nans, then take the difference between consecutive positions to know the lengths of the runs.

2 个评论
显示无隐藏无

madhan ravi 2019-2-5

+1 , one closing paranthesis ")" is missing before numel()

Guillaume 2019-2-5

Thanks, fixed.

请先登录，再进行评论。

类别

MATLAB Language Fundamentals Matrices and Arrays

在 Help Center 和 File Exchange 中查找有关 Matrices and Arrays 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