iskipaverage is a program designed to resample ASCII tab-delimited data files.
Usage: iskipaverage iskip headersize numberofchannels filename
-headersize defines the number of lines to copy directly to the output file as the global header
-numberofchannels defines the number of data channels or ASCII columns comprise your data
-iskip defines the number of points to keep/skip. The points that are skipped are averaged with the point that should be kept in an attempt to remove high frequency aliasing from the data. Source
