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String plot of data read from text file
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I need to plot a graph of a certain value against date/time. Now i am getting values from a text file which are time stamped and i need to use those dates. So when I extract the required data its in form of string and i am not able to plot. Can anyone kindly help me out. Code is as follows :
clear;
clc;
%read data at start of program for calibration
io_contents = fullfile('Average Reflex Time.txt'); %File directory
filetext = fileread(io_contents); %Read contents of file
expr = '\A'; %extract data
fileread_info = regexp(filetext, expr, 'split');
file_info=regexprep(fileread_info,'Date :','');
file_info1=regexprep(fileread_info,'verage Reflex Time :','');
file_info1=regexprep(file_info1,'ms.','');
avg_ref_time =str2double(file_info1); %convert from cell to array
date = file_info{1}; %convert from cell to array????
plot(avg_ref_time,date); <---- cant plot : date is string
Text file data format :
Date : 8/8/2012 10:21:36 Average Reflex Time : 473.7ms.
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