GGPSA Biomechanical Data filtering
by  Giannis Giakas PhD
1999



Things to know before you run the software
---------------------------
Make sure you edit all your text files with a TEXT editor such as notepad.
In other cases save as... TEXT 

All files (input data file, parameters file and output filtered files)
(have to) will be in the same directory. 

All files and directories must have lower than 8 characters 
e.g. c:\giannis\data\trial1.dat

The data file must be in a directory that has no spaces (entering from DOS).
e.g the directory c:\My data\trial1.dat   is not good

The data file must be a text file containing numbers only. 
e.g. Test this with notepad, if you see strange characters there is a problem. 

The data must be in collumns (tab delimited), starting from top left
e.g. If you have data in Excel (in collumns) starting from a1, 
go to FILE--> SAVE as... --> Text (Tab delimited) *.txt

Remove all headings from each collumn so the files start straight with numbers.
You should know what each collumn represents.

This version of the program will not ask you for output file names.
The output filtered data will be in the same directory with the input files
Their names will be OUT0.txt, OUT1.txt, OUT2.txt

If you want to filter many different data files remember to rename the
output files, as these will be overwritten.

Remember to change the parameters if nessecary for different files.
e.g. different sampling frequency

Sometimes text editors will put an additional extension to the data
files that you might not be able to see (hidden through an application type)
in the windows explorer. Make sure you do not have 2 extensions as this will 
cause a problem.
e.g.   trial1.dat.txt