From 18fd8ce6e3d5753e0c4ae61ef24ddd3f8edb6d17 Mon Sep 17 00:00:00 2001
From: DBras <danielbrasholt@gmail.com>
Date: Sun, 10 May 2026 18:47:59 +0200
Subject: [PATCH] init commit

---
 .gitignore          |  1 +
 Formelsamling.ipynb | 63 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 64 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Formelsamling.ipynb

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..4c53c83
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.ipynb_checkpoints/**
diff --git a/Formelsamling.ipynb b/Formelsamling.ipynb
new file mode 100644
index 0000000..2ae5e2d
--- /dev/null
+++ b/Formelsamling.ipynb
@@ -0,0 +1,63 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "6801bdc7-2b6a-4478-a15e-02a30f5f0f89",
+   "metadata": {},
+   "source": [
+    "# Sensitivitet, specificitet og positiv/negativ prædiktiv værdi"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "080e79be-8277-4cd5-8ff0-83a68f7e01d1",
+   "metadata": {},
+   "source": [
+    "$$\n",
+    "Sensitivitet = P(Positiv\\ test | syg) = \\frac{antal\\ sandt\\ positive}{antal\\ sandt\\ positive + antal\\ falsk\\ negative}\n",
+    "$$\n",
+    "\n",
+    "$$\n",
+    "Specificitet = P(Negativ\\ test|rask) = \\frac{antal\\ sandt\\ negative}{antal\\ sandt\\ negative + antal\\ falsk\\ positive}\n",
+    "$$\n",
+    "\n",
+    "$$\n",
+    "PPV = P(Syg|positiv\\ test) = \\frac{antal\\ sande\\ positive}{antal\\ sande\\ positive + antal\\ falske\\ positive}\n",
+    "$$\n",
+    "\n",
+    "$$\n",
+    "NPV = P(Rask|negativ\\ test) = \\frac{antal\\ sande\\ negative}{antal\\ sande\\ negative + antal\\ falske\\ negative}\n",
+    "$$"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "76bb0b41-f3a1-4065-9962-c5690caed0b8",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.14.4"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}