Selecting specific values from an array based on a defined condition

12 次查看（过去 30 天）
SB
SB 2019-9-25
评论： SB 2019-9-25
I have the following array:
d = [0,100,-100];
m = 300;
I want to select certain values of array d as follows:
d(0<=m+d<=300);
So i want to select all the d values where m+d is beween 0 and 300 with both ends included. The result should look like [0,-100] and 100 should be excluded since it is out the defined range. However, I am getting d to be [0,100,-100]. Please let me know where I went wrong.

请先登录，再回答此问题。

采纳的回答

Fabio Freschi
Fabio Freschi 2019-9-25
编辑：Fabio Freschi 2019-9-25
d+m is not scalar: use a single & for logical AND
d(d+m >= 0 & d+m <= 300)

更多回答（1 个）

Johannes Fischer
Johannes Fischer 2019-9-25
编辑：Johannes Fischer 2019-9-25
Th logical expression
0 <= m+d <= 300
is not interpreted by Matlab as you think it is. It rather is interpreted as
(0 <= m+d) <= 300
where the expression in brackets results in logical 0 and 1 values which all are below 300, which in turn results in logical 1 at each position. What you want is a combination of both cases
d(0 <= m+d && m+d <= 300);
  3 个评论
显示 1更早的评论

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Loops and Conditional Statements 的更多信息

标签

产品


版本

R2017a

Community Treasure Hunt

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

Start Hunting!

Translated by