Find data from txt file
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Hi all,
I try to find a data from txt file. In a row (i don't known which row), there is an information like "Dt: 0.0001". I want to find this row and store 0.0001 as a variable. How can i do that?
Thanks for help
回答(2 个)
Mathieu NOE
2024-4-30
Simply using the suggested methods , you can access your DT data this way
I simply created two data files from you post
I used lower to convert all characters to lower case which then ease the process
% first file
out = fileread('data1.txt')
str = extractBetween(lower(out),'dt','sec');
A = regexp(str,'[-+]?([0-9]*[.])?[0-9]+([eE][-+]?\d+)?','match'); % extract numerical content of string
dt_value = str2double(A{1})
% second file
out = fileread('data2.txt')
str = extractBetween(lower(out),'dt','sec');
A = regexp(str,'[-+]?([0-9]*[.])?[0-9]+([eE][-+]?\d+)?','match'); % extract numerical content of string
dt_value = str2double(A{1})
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