Identifying numbers within a long string containing multiple occurrences of text and numbers in one row

1 次查看（过去 30 天）
Saeid
Saeid 2022-1-11
回答： Saeid 2022-1-12
Read from a text file, my input array contains one row that looks like this:
x y z p (Pa) @ mDot=0.003 p (Pa) @ mDot=0.03 p (Pa) @ mDot=0.3 p (Pa) @ mDot=3
Is there a way to identify the numbers in that row and create a separate numerical array based on them?
Something like:
NUMM=[0.003 0.03 0.3 3]

请先登录，再回答此问题。

采纳的回答

Stephen23
Stephen23 2022-1-12
编辑：Stephen23 2022-1-12
Ran in:
Simpler and gives the requested output:
str = 'x y z p (Pa) @ mDot=0.003 p (Pa) @ mDot=0.03 p (Pa) @ mDot=0.3 p (Pa) @ mDot=3';
out = str2double(regexp(str,'\d+\.?\d*','match'))
out = 1×4
0.0030 0.0300 0.3000 3.0000

更多回答（1 个）

Saeid
Saeid 2022-1-12
Thank you both!

类别

在 Help Center 和 File Exchange 中查找有关 Characters and Strings 的更多信息

标签

产品


版本

R2021b

Community Treasure Hunt

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

Start Hunting!

Translated by