Computing with multiple files

Dear All,

I am having time series data of around 100 stations, I need to calculate mean, detrending and have to save the output to a file for each station. How to proceed actually I am new to matlab. I want in such a way that by giving the station name, it will create the result.I am attaching one time series for example:.....where first column is the time, second is the position and third is the error. Also please tell me how to calculate mean and detrending with error...

 2003.04246      1.36996  0.00357
 2003.04520      1.37082  0.00309
 2003.04794      1.36922  0.00332
 [sizable chunk elided for brevity--dpb]
 ...
 2006.10000      1.45960  0.00315
 2006.10274      1.46003  0.00326
 2006.10548      1.46138  0.00504

[dpb]

Don't paste such large sample datasets -- 5 or 10 lines is plenty to indicate the format...the rest is just noise.

If there's reason for something peculiar in the dataset that requires it, use the paperclip to attach a file instead of pasting so much text.

Answer 1

[dpb]

...how to calculate mean and detrending with error...

doc mean % for a)

Don't know what ...detrending with error means? For detrending

doc polyfit % and friends for linear trends

For processing multiple files, see the FAQ

http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F

I most strongly recommend to your attention the dir solution if you can make a suitable naming convention to return the files desired with a judicious choice of wildcard in the argument.