retrieve particular time data from .txt file

Question

Venkatkumar M 2021-1-14

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/717278-retrieve-particular-time-data-from-txt-file

评论： Image Analyst 2021-1-15

采纳的回答： Image Analyst

t2.txt

在 MATLAB Online 中打开

hello,

the text file time and votlage values from 0.5sec to 0.55sec

but i need extract 0.52sec to 0.54sec from this txt file

how to code this one?

z=readmatrix("t2.txt");
y=z(:,1);
x=z(:,2);

this is code i used to extract the column separately. I need values from particular time period?

please help me to get resolve the issue

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Answer 1

Image Analyst 2021-1-14

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/717278-retrieve-particular-time-data-from-txt-file#answer_598280

编辑：Image Analyst 2021-1-14

在 MATLAB Online 中打开

Did you try

% Read in data from text file with readmatrix()
data = readmatrix('t2.txt');
% Extract time into vector t, and the signal into vector y.
y = data(:, 1);
t = data(:, 2);
% Find out what indexes are between time1 and time2.
time1 = 0.52;
time2 = 0.54;
indexes = (t >= time1) & (t <= time2);
% Extract only those data into new vectors.
yExtracted = y(indexes);
tExtracted = t(indexes);