Finding threshold of matrix

3 ビュー (過去 30 日間)
MSP
MSP 2017 年 9 月 16 日
コメント済み: Walter Roberson 2017 年 9 月 16 日
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).

回答 (1 件)

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

サインインしてコメントする。

Community Treasure Hunt

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

Start Hunting!

Translated by