Added results for exo 3.

exercice_001/exo3.js

@@ -0,0 +1,83 @@
+document.getElementById("main-title").innerText = "Los Statisticos";
+
+function isNumber(str) {
+    return str !== "" && !isNaN(str);
+}
+
+function isInputBoxANumericValue(maxIdValue) {
+    let userInput = document.getElementById("input-" + maxIdValue).value;
+    return isNumber(userInput);
+}
+
+function booleanToNumber(trueOrFalse) {
+    if (trueOrFalse) {
+        return 1;
+    }
+    return 0;
+}
+
+function countNumberOfNumericValuesInInputBoxes(maxIdValue) {
+    const ret = booleanToNumber(isInputBoxANumericValue(maxIdValue));
+    if (maxIdValue === 1) {
+        return ret;
+    }
+    return ret + countNumberOfNumericValuesInInputBoxes(maxIdValue - 1);
+}
+
+function getInputValueAsNumber(maxIdValue) {
+    let userInput = document.getElementById("input-" + maxIdValue).value;
+    if(isNumber(userInput)){
+        return parseFloat(userInput);
+    }
+    return 0;
+
+}
+
+function sumNumericValuesInInputBoxes(maxIdValue) {
+    if(maxIdValue === 1){
+        return getInputValueAsNumber(maxIdValue);
+    }
+    return getInputValueAsNumber(maxIdValue) + sumNumericValuesInInputBoxes(maxIdValue - 1);
+}
+
+function sumOfSquareOfNumericValuesInInputBoxes(maxIdValue){
+    let ret = getInputValueAsNumber(maxIdValue) * getInputValueAsNumber(maxIdValue);
+    if(maxIdValue === 1){
+        return ret;
+    }
+    return ret + sumOfSquareOfNumericValuesInInputBoxes(maxIdValue - 1);
+}
+
+function averageNumericValuesInInputBoxes(maxIdValue) {
+    let sum = sumNumericValuesInInputBoxes(maxIdValue);
+    let n = countNumberOfNumericValuesInInputBoxes(maxIdValue);
+    return sum / n;
+}
+
+function averageSquareOfNumericValuesInInputBoxes(maxIdValue) {
+    let sumOfSquare = sumOfSquareOfNumericValuesInInputBoxes(maxIdValue);
+    let n = countNumberOfNumericValuesInInputBoxes(maxIdValue);
+    return sumOfSquare / n;
+}
+
+function standardDeviationOfNumericValues(maxIdValue){
+    let avg = averageNumericValuesInInputBoxes(maxIdValue);
+    let avgOfTheSquare = averageSquareOfNumericValuesInInputBoxes(maxIdValue);
+    return Math.sqrt(avgOfTheSquare - avg * avg);
+}
+
+
+function exo1b() {
+    let numericValuesInInputBoxes = countNumberOfNumericValuesInInputBoxes(4);
+    document.getElementById("result-box-1").innerText = numericValuesInInputBoxes;
+}
+
+function exo1c() {
+    let avg = averageNumericValuesInInputBoxes(4)
+    document.getElementById("result-box-2").innerText = avg;
+}
+
+function exo1d() {
+    let standardDeviation = standardDeviationOfNumericValues(4)
+    document.getElementById("result-box-3").innerText = standardDeviation;
+}