retrieve particular time data from .txt file

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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

Accepted Answer

Image Analyst
Image Analyst on 14 Jan 2021
Edited: Image Analyst on 14 Jan 2021
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);
  2 Comments
Image Analyst
Image Analyst on 15 Jan 2021
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