convert time stamp into minutes or seconds
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I have a file with
29.06.2014 09:53:37 -1.8
29.06.2014 09:58:36 -2.0
29.06.2014 10:39:01 -2.0
I would like to covert the second column into how long time past from the first readout in the column, in minutes or seconds and plot column 2 and 3. Matlab doesn't seem to be able to handle the ':' sign. How do I do this?
Many thanks!
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Jos (10584)
2014-7-1
I assume the 3rd column represents a value.
[D,T,V] = textread('MyFile.txt','%s%s%f')
DT = datevec(strcat(D,'-',T),'dd.mm.yyyy-HH:MM:ss') % convert to matlab time vectors
dTsec = arrayfun(@(k) etime(DT(k,:),DT(1,:)),1:size(DT,1)) % relative time in seconds
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