How can i convert .dat file values into days or months or years? Using Matlab?

This is data format and i want to convert all those values into days or month or years. The values of this data-set are in mili seconds. I want to convert in to days and the add up all day energy into single cell? is it possible if it's leave me a comment thanks in advance

[KL]

What are those values in the attached image? If they are 224.19 milliseconds, then what is the starting time of your measurement on a calender date and time.

Answer 1

[Jacob Ward]

If I'm understanding you correctly, maybe try something along these lines:

 milliSeconds = 221+3.5*rand(15006,1);     % This line produces values similar to yours

 days = milliSeconds./1000./60./60./24;    % Converts each value into days
 totalDays = sum(days);                    % Adds up all values to get the total days

Once you have your values in milliseconds, just convert to days by dividing and use sum(). Replace my 'milliSeconds' with whatever variable your data set is saved to.

[Furqan Jalil]

Thanks I have 3 days data how to sum up values of one day into matrix? Thanks if you could help me with this query?

[Jacob Ward]

Just put each day's sum in a different index of "totalDays"

milliSeconds = 221+3.5*rand(15006,1); % This line produces values similar to yours

days = milliSeconds/1000/60/60/24; % Converts each value into days
totalDays(1) = sum(days(1:5002)); % Adds up values from the first day.
                                  % I'm assuming each day has about 5000 data
                                  % points but you can change it to whatever.
totalDays(2) = sum(days(5003:10004)); % Adds up values from the second day.
totalDays(3) = sum(days(10004:15006)); % Adds up values from the third day.