extracting specific rows from a matrix

3 次查看（过去 30 天）
Don Brohaugh
Don Brohaugh 2015-4-23
评论： Don Brohaugh 2015-4-23
If I have a 1080 x 4 matrix Y, arranged as:
value1 int int int
value2 int int int
value3 int int int
and so on for 1080 rows,
how do I extract all rows in the matrix with the integer in column 3, whose value is, say 11, and create a new 6 x 4 matrix Z of the six entries in Y with the integer 11 present in column 3?
Thank you,
Don

请先登录，再回答此问题。

采纳的回答

Guillaume
Guillaume 2015-4-23
编辑：Guillaume 2015-4-23
This is basic matrix indexing:
Z = Y(Y(:, 3) == 11, :);

更多回答（0 个）

类别

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