set terminal postscript set output "sort.ps" plot "lmsS.txt" with lines, "lmsC.txt" with lines, "lmsR.txt" with lines plot "lmsOS.txt" with lines , "lmsOC.txt" with lines , "lmsOR.txt" with lines plot "amsS.txt" with lines , "amsC.txt" with lines , "amsR.txt" with lines plot "lmsR.txt" with lines, "lmsOR.txt" with lines, "amsR.txt" with lines