From: Lukáš Jiřiště <jiriste@icpf.cas.cz>
Date: Mon, 20 May 2024 14:03:21 +0000 (+0200)
Subject: Change detect_open to detect_change
X-Git-Url: https://git.ljiriste.work/?a=commitdiff_plain;h=eae8e4dd8602cb1f33bb329b586b0976f2c442e6;p=analyse_servo.git

Change detect_open to detect_change

Positive threshold behaves the same way it behaved before.
With negative threshold the function only detects values (derivatives)
lower (bigger in absolute value) than that.
---

diff --git a/detect_change.m b/detect_change.m
new file mode 100644
index 0000000..0c71010
--- /dev/null
+++ b/detect_change.m
@@ -0,0 +1,17 @@
+function changed = detect_change(t, p, threshold = 0.2, min_dist = 10)
+	dp = (p(2:end) - p(1:end - 1)) ./ (t(2:end) - t(1:end - 1));
+	dp = dp / max(dp);
+	changed = dp / threshold > 1;
+	for i = (length(changed):-1:1)
+		j = i - 1;
+		while (j > 0 && t(j) + min_dist > t(i))
+			if (changed(j) == 1)
+				changed(i) = 0;
+				break;
+			end
+			j -= 1;
+		end
+	end
+	changed = [0 changed];
+	changed = logical(changed);
+end
diff --git a/detect_open.m b/detect_open.m
deleted file mode 100644
index 4c20f01..0000000
--- a/detect_open.m
+++ /dev/null
@@ -1,17 +0,0 @@
-function opened = detect_open(t, p, threshold = 0.2, min_dist = 10)
-	dp = (p(2:end) - p(1:end - 1)) ./ (t(2:end) - t(1:end - 1));
-	dp = dp / max(dp);
-	opened = dp > threshold;
-	for i = (length(opened):-1:1)
-		j = i - 1;
-		while (j > 0 && t(j) + min_dist > t(i))
-			if (opened(j) == 1)
-				opened(i) = 0;
-				break;
-			end
-			j -= 1;
-		end
-	end
-	opened = [0 opened];
-	opened = logical(opened);
-end