-- split: transforms a pseudo-2D spectrum into an array of independent documents

-- you NEED to REDEFINE:
local FOLDER = "/Users/_your_account_/Desktop/split/"
	-- the folder where the new spectra will be saved
	
os.execute('mkdir "'..FOLDER..'"')			-- creates the folder
local spec = getf("y")						-- gets the parameters for the 2D spectrum
local step = spec.width / spec.size			-- difference (in ppm) between two rows
local y = spec.start + spec.width - (step / 2)		-- the frequency of the bottom row

for i = 1, spec.size do				-- loop over the rows
	mark( "h", y )					-- selects a row
	extract()						-- extracts a row
	export( FOLDER..i )				-- exports it into a new file called 1, 2, 3...
	closex()						-- closes the extract
	y = y - step					-- frequency of the next row
end