diff --git a/fullspectDiffRatio.m b/fullspectDiffRatio.m
new file mode 100644
index 0000000000000000000000000000000000000000..b8f423e9f9228cc8cadca491a729a326bb7c0159
--- /dev/null
+++ b/fullspectDiffRatio.m
@@ -0,0 +1,171 @@
+clear *
+hold off
+
+%runlist = ['S5'; 'S6'];
+runlist = ['S6'];
+run = ['S6'];
+%windowlist = ['Hann ';'Tukey']; 
+windowlist = 'Hann';
+
+%ifolist = ['H1'; 'L1'];
+ifolist = ['H1'];
+plotcolor = ['RED  '; 'GREEN'];
+
+bandlolist = [40   40 69.9 199.9 30 20];
+bandhilist = [2000 70.1 700.1 2000 2000 2000];
+ylolist = 1e-6*1e23*[1.e-23 6.e-23 1.e-23 1.e-23 -1e6*1.e-24 -1e6*1.e-23];
+yhilist = 1e23*[1.e-21 5.e-21 1.e-21 1.e-21 1.e-24 1.e-23];
+bandnames = ['40_2000_Hz ';'40_70_Hz   ';'70_700_Hz  ';'200_2000_Hz';' 30_2000_Hz'; ' 20_2000_Hz'];
+% 1 = linear-linear, 2 = linear-log, 3 = log-linear, 4 = log-log
+plottypelist = [4 2 2 4 1 1];
+
+combinedbandlolist = [40. 55. 96. 110. 144. 165. 429. 677. 932. 984. 1029. 1141.];
+combinedbandhilist = [2000. 65. 97. 130. 146. 195. 439. 678. 933. 985. 1031. 1143.];
+combinedbandnames = ['40_2000_Hz  ';'55_65_Hz    ';'96_97_Hz    ';'110_130_Hz  ';'144_146_Hz  ';'165_195_Hz  ';'429_439_Hz  ';'677_678_Hz  ';'932_933_Hz  ';'984_985_Hz  ';'1029_1031_Hz';'1141_1143_Hz'];
+combinedylolist = [1.e-23 1.e-24 1.e-24 1.e-24 2.e-23 1.e-24 2.e-23 3.e-23 4.e-23 4.e-23 5.e-23 5.e-23];
+combinedyhilist = [1.e-21 1.5e-21 2.e-22 1.5e-22 7.e-23 1.e-22 1.e-22 1.4e-22 1.8e-22 2.e-22 3.e-22 2.5e-22];
+combinedplottypelist = [4 1 1 1 1 1 1 1 1 1 1 1];
+
+%design = load('design_curve.txt');
+%freqdesign = design(:,1);
+%sensdesign = design(:,2);
+
+freq = cell(2,2);
+amppsd = cell(2,2);
+amppswwt = cell(2,2);
+
+% Loop over data runs:
+
+sprintf('Looping over data runs...')
+%for irun = 1:length(runlist)
+%for irun = 2:2
+%   run = strtrim(runlist(irun,1:2));
+%   sprintf('Run = %s',run)
+irun = 1;
+
+% Loop over interferometers to make single-ifo broadband plots
+% showing both unweighted and weighted averages
+
+  sprintf('Looping over single interferometers...')
+%  for iifo = 1:length(ifolist) 
+  for iifo = 1:1
+     ifo = ifolist(iifo,1:2)
+     sprintf('ifo = %s',ifo)
+     color = strtrim(plotcolor(iifo,:));
+     fnameroot = sprintf('%s%s',run,ifo);
+     fname1 = sprintf('%s_%s_40_2000test.txt',fnameroot,strtrim(windowlist(irun,:)));
+     fnameFull1 = strcat('~gmeadors/2012/12/13/AMPS/', fname1);
+     data1 = load(fnameFull1);
+     fname2 = sprintf('%s_%s_40_2000feedforward.txt',fnameroot,strtrim(windowlist(irun,:)));
+     fnameFull2 = strcat('~gmeadors/2012/12/13/AMPS/', fname2);
+     data2 = load(fnameFull2);
+     % Try resampling to smooth random variation.
+     % This combines neighboring bins.
+     % Bins in the data files are 1/1800 Hz wide, from 1800 s SFTs.
+     % Factor is the the divisor by which frequency resolution is reduced.
+     resampleFactor = 450;
+     % FilterSize is the numbers of bins adjacent (nearest neighbor and beyond)
+     % that are used to calculate an FIR filter result for a resampled bin.
+     resampleFilterSize = 900;
+     % Theoretically, the frequency array is linear so it could be resampled
+     % using a less sophisticated algorithm. Yet why not try out resample here?
+     % Because we are using Hann windows, multiply by sqrt(8/3)
+     freq{irun,iifo} = resample(data1(:,1), 1,...
+         resampleFactor, resampleFilterSize);
+     amppsd{irun,iifo} = resample((data1(:,3) - data2(:,3)),1,...
+         resampleFactor, resampleFilterSize)./resample(data1(:,3),1,resampleFactor,resampleFilterSize);
+     amppsdwt{irun,iifo} = resample((data1(:,5) - data2(:,5)), 1,...
+         resampleFactor, resampleFilterSize)./resample(data1(:,5),1,resampleFactor,resampleFilterSize);
+     sprintf('Looping over single-IFO bands...')
+     for iband = 1:length(bandlolist)
+	bandlo = bandlolist(iband);
+        bandhi = bandhilist(iband);
+        sprintf('Band = %f-%f Hz',bandlo,bandhi)
+	ylo = ylolist(iband);
+        yhi = yhilist(iband);
+        bandname = strtrim(bandnames(iband,:));
+        if (plottypelist(iband)==1)
+	  plot(freq{irun,iifo},amppsd{irun,iifo},'color','black')
+	elseif (plottypelist(iband)==2)
+          semilogy(freq{irun,iifo},amppsd{irun,iifo},'color','black')
+        elseif (plottypelist(iband)==3)
+	  semilogx(freq{irun,iifo},amppsd{irun,iifo},'color','black')
+	elseif (plottypelist(iband)==4)
+          loglog(freq{irun,iifo},amppsd{irun,iifo},'color','black')
+	end
+        xlim([bandlo bandhi])
+        ylim([ylo yhi])
+        hold on
+        plot(freq{irun,iifo},amppsdwt{irun,iifo},'color',color)
+	%plot(freqdesign,sensdesign,'color','blue');
+        grid
+	legend('Average amplitude PSD','Weighted average amplitude PSD','Location','North')
+	titlestr = sprintf('%s %s Average Ratio of Spectra, Before - After (%d-%d Hz)',run,ifo,round(bandlo),round(bandhi));
+        title(titlestr)
+	fnamepdf = sprintf('%s_%s.pdf',fnameroot,bandname)
+        print('-dpdf',fnamepdf)
+	fnamepng = sprintf('%s_%s.png',fnameroot,bandname)
+        print('-dpng',fnamepng)
+        hold off
+     end
+  end
+
+% Make combined-IFO plots using for the full spectrum 
+% and for particular (mostly) narrowband regions
+
+%  sprintf('Looping over combined-IFO bands...')
+%  for iband = 1:length(combinedbandlolist)  
+%     bandlo = combinedbandlolist(iband);
+%     bandhi = combinedbandhilist(iband);
+%     ylo = combinedylolist(iband);
+%     yhi = combinedyhilist(iband);
+%     bandname = strtrim(combinedbandnames(iband,:));
+%     sprintf('Band = %f-%f Hz',bandlo,bandhi)
+%
+%     if (combinedplottypelist(iband)==1)
+%       plot(freqdesign,sensdesign,'color','blue')
+%     elseif (combinedplottypelist(iband)==2)
+%       semilogy(freqdesign,sensdesign,'color','blue')
+%     elseif (combinedplottypelist(iband)==3)
+%       semilogx(freqdesign,sensdesign,'color','blue')
+%     elseif (combinedplottypelist(iband)==4)
+%       loglog(freqdesign,sensdesign,'color','blue')
+%     end
+%     xlim([bandlo bandhi])
+%     ylim([ylo yhi])
+%     titlestr = sprintf('%s Average Spectra (%d-%d Hz)',run,round(bandlo),round(bandhi));
+%     title(titlestr)
+%     hold on
+%
+%     for iifo = 1:length(ifolist)
+%        color = strtrim(plotcolor(iifo,:));
+%        plot(freq{irun,iifo},amppsd{irun,iifo},'color',color)
+%        plot(freq{irun,iifo},amppsdwt{irun,iifo},'color',color)
+%     end
+%	legend('Initial LIGO design','Average H1 amplitude PSD','Weighted average H1 amplitude PSD','Average L1 amplitude PSD','Weighted average L1 amplitude PSD','Location','North')
+%     fnameroot = sprintf('%s_combined',run);
+%     fnamepdf = sprintf('%s_%s.pdf',fnameroot,bandname)
+%     print('-dpdf',fnamepdf)
+%     fnamepng = sprintf('%s_%s.png',fnameroot,bandname)
+%     print('-dpng',fnamepng)
+%     hold off
+%   end
+%end
+
+% Save key data in .mat file
+
+%frequency = freq{1,1};
+
+%S5H1amppsd = amppsd{1,1};
+%S5H1amppsdwt = amppsdwt{1,1};
+%S5L1amppsd = amppsd{1,2};
+%S5L1amppsdwt = amppsdwt{1,2};
+
+%save ('S5spectradata.mat', 'frequency','S5H1amppsd', 'S5H1amppsdwt', 'S5L1amppsd', 'S5L1amppsdwt');
+
+%S6H1amppsd = amppsd{2,1};
+%S6H1amppsdwt = amppsdwt{2,1};
+%S6L1amppsd = amppsd{2,2};
+%S6L1amppsdwt = amppsdwt{2,2};
+
+%save ('S6spectradata.mat', 'frequency','S6H1amppsd', 'S6H1amppsdwt', 'S6L1amppsd', 'S6L1amppsdwt');