Culminado taller 3 de promedio, mediana y moda

Rmoreno3 · Rmoreno3 · commit 19c8bd9c61b2 · 2021-07-07T20:52:05.000-04:00
diff --git a/mediana.html b/mediana.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta http-equiv="X-UA-Compatible" content="IE=edge">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>Mediana</title>
+</head>
+<body>
+  <header>
+    <h1>Calculando la mediana.</h1>
+  </header>
+
+  <script src="./mediana.js"></script>
+</body>
+</html>
diff --git a/mediana.js b/mediana.js
@@ -0,0 +1,51 @@
+const calculateMiddleArithmetic = (list) => {
+  const reducer = (accumulator, currentValue) => accumulator + currentValue;
+  
+  const sumList = list.reduce(reducer);
+  
+  const averageList1 = sumList / list.length;
+  return averageList1;
+}
+
+
+
+const list1 = [
+  100,
+  300,
+  11,
+  40000,
+  500,
+  10000
+];
+
+list1.sort(function(a, b) {
+  return a - b;
+});
+
+const isPar = (number) => {
+  if (number % 2 === 0) {
+    return true;
+  } else {
+    return false;
+  }
+}
+
+let middle;
+
+const middleList1 = parseInt(list1.length / 2);
+
+if (isPar(list1.length)) {
+  const element1 = list1[middleList1 - 1];
+  const element2 = list1[middleList1];
+
+  const element1_2 = calculateMiddleArithmetic([
+    element1,
+    element2
+  ]);
+
+
+  middle = element1_2;
+  
+} else {
+  middle = list1[middleList1];
+}
diff --git a/moda.html b/moda.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta http-equiv="X-UA-Compatible" content="IE=edge">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>Moda</title>
+</head>
+<body>
+  <header>
+    <h1>
+      Calculando la moda
+    </h1>
+  </header>
+
+  <script src="./moda.js"></script>
+</body>
+</html>
diff --git a/moda.js b/moda.js
@@ -0,0 +1,51 @@
+const list1 = [
+  1,
+  2,
+  3,
+  3,
+  2,
+  4,
+  5,
+  2,
+  2,
+  2,
+  5,
+  4,
+  4,
+  4
+]
+
+const list1Count = {};
+
+//Recorremos nuestro objeto para saber cuantas veces se repite cada valor.
+list1.map(
+  function (element) {
+    if (list1Count[element]) {
+      list1Count[element] += 1;
+    } else {
+    list1Count[element] = 1; 
+    }
+  }
+);
+
+//Convertimos nuestro objeto list1Count en una array, para ordenarlo de menor a mayor.
+const list1Array = Object.entries(list1Count).sort(
+  function (valueAcumulated, newValue) {
+    return valueAcumulated[1] - newValue[1];
+  }
+);
+
+const moda = list1Array[list1Array.length - 1];
+
+
+//Otra forma mas corta
+const NUMBERS = [2, 2, 2, 2, 2, 4, 5, 5, 5, 5, 5, 5, 5, 5, 9];
+
+function mode(arr){
+  return arr.sort((a,b) =>
+    arr.filter(v => v===a).length - arr.filter(v => v===b).length)
+    .pop();
+}
+
+
+console.log(mode(NUMBERS));
