Using relative paths in gnuplot plot files
In a gnuplot instruction file, is it possible to indicate relative paths for the data source files and for the output? The paths must be relative to the gnuplot instruction file path. Context I have large data files containing between 12 to 50 x-y curves that I process using PHP scripts and gnuplot in order to provide nice graphic views of the data. The views are generated using gnuplot and for each view, I have one .csv file, one gnuplot plotting instruction file and one graphic. Everything is nicely sorted into folders. Usually, in a folder, the graphics are at the top level, then in a