Finding the first occurance of a given string

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UWM 2016-11-10

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评论： UWM 2016-11-11

采纳的回答： KSSV

I have a large text file in which I need to find the first occurance of a given string, e.g. 'STAX'. How can I do this?

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KSSV 2016-11-11

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https://ww2.mathworks.cn/matlabcentral/answers/311640-finding-the-first-occurance-of-a-given-string#answer_242858

编辑：KSSV 2016-11-11

在 MATLAB Online 中打开

fid = fopen('filename','r') ;
S = textscan(fid,'%s','Delimiter','\n');
S = S{1} ;
%%Get the line number of your string 'STAX'
idxS = strfind(S,'STAX');   % find the index of your string 
idx = find(not(cellfun('isempty',idxS)));  % your required indices 
S(idx)