Searching multiple strings at one time

97 ビュー (過去 30 日間)
Tyler Murray
Tyler Murray 2016 年 9 月 22 日
コメント済み: Tao Wang 2022 年 1 月 13 日
I am importing a text file and want to eliminate data I don't need to further study. The array is a 40 x 1 and each row contains its own sentence with data. I want to search for multiple strings since I know what the interesting data points start with. I don't want to use strfind multiple times and combine at the end because that will just make the code unnecessarily long and slow. Ideally, I'd have a scenario such as
exampleStrings = {'This test was run hot'; 'This test failed', 'This test failed', 'This test ran at hot and cold', 'This test ran at ambient'}
check = {'hot', 'cold', 'med'}
x = strfind(exampleStrings, check)
x = [1; 0; 0; 1; 0] (output)
Essentially, the string search cannot search for a perfect match or else it will return all 0's which is why I have been struggling. Any ideas?
  1 件のコメント
Tao Wang
Tao Wang 2022 年 1 月 13 日
mystr={'123a1','ab','111'};
pat = ("a"|"b");
a = strfind(mystr,pat)
% can get index of each match
ab = contains(mystr,pat)
% logical result

サインインしてコメントする。

採用された回答

Walter Roberson
Walter Roberson 2016 年 9 月 22 日
If you have R2016b then this would be a good place to use the new contains() string operation.
Otherwise:
~cellfun(@isempty,regexp(exampleStrings,strjoin(check,'|')))
  1 件のコメント
Tyler Murray
Tyler Murray 2016 年 9 月 22 日
ah I have 16a, contains looks great! Wonder why it took them so long to implement that. Your solution works as well, thank you!

サインインしてコメントする。

その他の回答 (0 件)

カテゴリ

Help Center および File ExchangeCharacters and Strings についてさらに検索

Community Treasure Hunt

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

Start Hunting!

Translated by