Borrar filtros
Borrar filtros

Searching multiple strings at one time

91 visualizaciones (últimos 30 días)
Tyler Murray
Tyler Murray el 22 de Sept. de 2016
Comentada: Tao Wang el 13 de En. de 2022
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 comentario
Tao Wang
Tao Wang el 13 de En. de 2022
mystr={'123a1','ab','111'};
pat = ("a"|"b");
a = strfind(mystr,pat)
% can get index of each match
ab = contains(mystr,pat)
% logical result

Iniciar sesión para comentar.

Respuesta aceptada

Walter Roberson
Walter Roberson el 22 de Sept. de 2016
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 comentario
Tyler Murray
Tyler Murray el 22 de Sept. de 2016
ah I have 16a, contains looks great! Wonder why it took them so long to implement that. Your solution works as well, thank you!

Iniciar sesión para comentar.

Más respuestas (0)

Categorías

Más información sobre Characters and Strings en Help Center y File Exchange.

Etiquetas

Community Treasure Hunt

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

Start Hunting!

Translated by