Finding threshold of matrix

3 次查看（过去 30 天）
MSP
MSP 2017-9-16
评论： Walter Roberson 2017-9-16
Suppose u have a matrix A with rand (i.e 0-1). Now a threshold(x) of A is to be determined so that 70% of values of the given matrix A are greater than the threshold(x).

请先登录，再回答此问题。

回答（1 个）

Walter Roberson
Walter Roberson 2017-9-16
sort() and index 3/10 of the way through.
  2 个评论
MSP
MSP 2017-9-16
would that be faster than doing percentile
Walter Roberson
Walter Roberson 2017-9-16
Yes. See the Algorithms section of https://www.mathworks.com/help/stats/prctile.html#btgyzpd-1 which describes the algorithm prctile uses.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Descriptive Statistics 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