diff --git a/psdplot.m b/psdplot.m
index b43eb8f..0c68518 100755
--- a/psdplot.m
+++ b/psdplot.m
@@ -13,7 +13,7 @@ if length(col) == length(mult)
 	cc = 'bkcgmry';
 	for i = [1:length(col)]
 		data.freq = diff(load(filename)(:,col(i)).*mult(i), d)*data.rate**d;
-		[p, f] = pwelch(data.freq, hanning(length(data.freq)/1), 0.5, [], data.rate, 'onesided', 'power');
+		[p, f] = pwelch(data.freq, hanning(length(data.freq)/100), 0.5, [], data.rate, 'onesided', 'power');
 		semilogx(f, 10*log10(p), cc(mod(i, length(cc))))
 		leg{i} = strcat(filename, ' col', num2str(col(i)));
 		hold on
diff --git a/temp2allan.m b/temp2allan.m
index 73c511e..d406150 100755
--- a/temp2allan.m
+++ b/temp2allan.m
@@ -12,18 +12,16 @@ ad_opt = eval(argv(){4});
 if length(col) == length(mult)
 	for i = [1:length(col)]
 		data.freq = load(filename)(:,col(i)).*mult(i);
-		if nargin == 4
-			if ad_opt(i) == 1
-				printf(strcat(filename, ' col', num2str(col(i)), ' drift removed\n\n'))
-				data.freq = detrend(data.freq);
-			elseif ad_opt(i) == 2
-				printf(strcat(filename, ' col', num2str(col(i)), ' relative ad : mean=', num2str(mean(data.freq)), '\n\n'))
-				data.freq = data.freq./mean(data.freq);
-			elseif ad_opt(i) == 3
-				printf(strcat(filename, ' col', num2str(col(i)), ' drift removed relative ad\n\n'))
-				data.freq = detrend(data.freq./mean(data.freq));
-			end
-		endif
+		if ad_opt(i) == 1
+			printf(strcat(filename, ' col', num2str(col(i)), ' drift removed\n\n'))
+			data.freq = detrend(data.freq);
+		elseif ad_opt(i) == 2
+			printf(strcat(filename, ' col', num2str(col(i)), ' relative ad : mean=', num2str(mean(data.freq)), '\n\n'))
+			data.freq = data.freq./mean(data.freq);
+		elseif ad_opt(i) == 3
+			printf(strcat(filename, ' col', num2str(col(i)), ' drift removed relative ad\n\n'))
+			data.freq = detrend(data.freq./mean(data.freq));
+		end
 		data.rate = 1;
 		[ad, S, err, tau] = allan(data, 2.^[0:nextpow2(length(data.freq))-3]./data.rate, strcat(strsplit(filename, '/'){end}, num2str(i)), 0);
 		ad_tosave{i} = vertcat(ad, err)';