diff signals/@signal/signal.m @ 3:3f77126f7b5f

First major revision of sequence library, now using classdef form, STILL A BIT BROKEN!

--- a/signals/@signal/signal.m	Sat Dec 22 16:17:51 2012 +0000
+++ b/signals/@signal/signal.m	Wed Jan 09 22:22:21 2013 +0000
@@ -25,15 +25,17 @@
 % }
 
 classdef signal
-	properties (GetAccess=private, SetAccess=immutable)
+	methods (Abstract)
+		c=channels(s)
+		u=construct(s)
+		r=rate(s)
 	end
+
 	methods
 		function s=signal, end
 
 		function s=and(s1,s2), s=sigcat(s1,s2); end
 		function y=cache(x), y=reclock(rate(x),sigarray(gather(x))); end
-		function c=channels(s), error('number of channels undefined'); end
-		function s=construct(sig), error('Cannot construct base signal class'); end
 		function display(a)
 			disp(sprintf('    %s :: signal(%s,%s)',tostring(a),fmt(channels(a)),fmt(rate(a))));
 			function s=fmt(x), if isnan(x), s='_'; else s=num2str(x); end; end
@@ -42,7 +44,6 @@
 		function y=map(f,x), y=sigmap(f,x); end
 		function s=mpower(a,b), s=resample(b,a); end
 		function s=or(s1,s2), s=sigbinop(@vertcat,s1,s2,@plus); end
-		function r=rate(s), error('sampling rate undefined'); end
 		function s2=reclock(r,s1), s2=sigreclock(r,s1); end
 		function y=drop(n,x), y=sigdrop(n,x); end
 		function y=take(n,x), y=sigtake(n,x); end