psdplot.m: add n-diff arg

bmarechal
1 parent 5f5b4d55d2
Showing 1 changed file with 2 additions and 1 deletions Side-by-side Diff
psdplot.m
@@ -4,6 +4,7 @@
 col = eval(argv(){2});
 mult = eval(argv(){3});
 data.rate = eval(argv(){4});
+d = eval(argv(){5});
  
 if length(col) == length(mult)
 	figure
@@ -11,7 +12,7 @@
 	grid on
 	cc = 'bkcgmry';
 	for i = [1:length(col)]
-		data.freq = load(filename)(:,col(i)).*mult(i);
+		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');
 		semilogx(f, 10*log10(p), cc(mod(i, length(cc))))
 		leg{i} = strcat(filename, ' col', num2str(col(i)));
...	...	@@ -4,6 +4,7 @@
4	4	col = eval(argv(){2});
5	5	mult = eval(argv(){3});
6	6	data.rate = eval(argv(){4});
	7	+d = eval(argv(){5});
7	8
8	9	if length(col) == length(mult)
9	10	figure
...	...	@@ -11,7 +12,7 @@
11	12	grid on
12	13	cc = 'bkcgmry';
13	14	for i = [1:length(col)]
14		- data.freq = load(filename)(:,col(i)).*mult(i);
	15	+ data.freq = diff(load(filename)(:,col(i)).mult(i), d)data.rate**d;
15	16	[p, f] = pwelch(data.freq, hanning(length(data.freq)/1), 0.5, [], data.rate, 'onesided', 'power');
16	17	semilogx(f, 10*log10(p), cc(mod(i, length(cc))))
17	18	leg{i} = strcat(filename, ' col', num2str(col(i)));