bmarechal / octave_scripts

Authored by bmarechal 2017-10-17 21:58:59 +0200

1 parent ddfe04310c

Exists in master

Showing 1 changed file with 23 additions and 0 deletions Inline Diff

psdplot.m

File was created	1	#!/usr/bin/octave-cli --persist
	2
	3	filename = argv(){1};
	4	col = eval(argv(){2});
	5	mult = eval(argv(){3});
	6
	7	if length(col) == length(mult)
	8	figure
	9	hold all
	10	grid on
	11	cc = 'bkcgmry';
	12	for i = [1:length(col)]
	13	data.freq = load(filename)(:,col(i)).*mult(i);
	14	data.rate = 1;
	15	[p, f] = pwelch(data.freq, [], 0.95, [], data.rate.*mult(i), 'onesided');
	16	semilogx(f, 10*log10(p), cc(mod(i, length(cc))))
	17	leg{i} = strcat(filename, ' col', num2str(col(i)));
	18	hold on
	19	end
	20	legend(leg)
	21	input("Press to continue...");