How to read mix characters in a cell, and write to another cell?

Question

mmenvo 2012-11-1

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/52454-how-to-read-mix-characters-in-a-cell-and-write-to-another-cell

In Matlab, I want to read specific characters from a cell which contains a mixture of numbers and texts and write them in a different cell. How can I do that in matlab? Could anybody help me with codes, please.

Here is the example:

-------------------------------------------------------------------------

r1200i000-0ln140010.LID

r1200i100-4ln140030.LID

r1200i100-8ln140010.LID

r1225i100-8ln140030.LID

-------------------------------------------------------------------------

This represents a string in a cell. I have more than such 100000 rows (cells) in a single column. I want to read the 14th and 15 th character (here 14th is 1 and 15th is 4) and write this value in a different column in the same row.

I think this [str2num or str2double] can help because i want to read strings and write the specific characters as numbers.

Could anybody help me how to write the codes for this work, please?

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Answer 1

Azzi Abdelmalek 2012-11-1

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/52454-how-to-read-mix-characters-in-a-cell-and-write-to-another-cell#answer_63945

在 MATLAB Online 中打开

v={'r1200i000-0ln140010.LID'
'r1200i100-4ln140030.LID'
'r1200i100-8ln140010.LID'
'r1225i100-8ln140030.LID'}
out=cellfun(@(x) str2num(x(14:15)),v,'un',0)