Artera GAS & Notes

Scripts/GoogleScripts/Artera_wowprog/Code.js

@@ -7,6 +7,7 @@ const writeSheet = SpreadsheetApp.getActiveSpreadsheet().getSheets()[1];
 function writeHeadings() {
   // Write the new Column Headings
   var lastColumn = writeSheet.getLastColumn()+1;
+  var lastRow = writeSheet.getLastRow();
   writeSheet.getRange(1, lastColumn).setValue("Percent Change");
   writeSheet.getRange(1, lastColumn+1).setValue("Progress");
   writeSheet.getRange(2, lastColumn+1).setValue(today);
@@ -35,6 +36,8 @@ function findRow(course, avgProgress, lastColumn) {
   var prevColumn = writeSheet.getLastColumn()-2;
   var numRows = writeSheet.getLastRow();
   var data = writeSheet.getRange(3,1,numRows,1).getValues();
+  var progArray = [];
+  progArray.push(avgProgress);
   for(var i = 0; i<data.length;i++){
     if(data[i][0] == course){
       var row = i+3;
@@ -45,6 +48,8 @@ function findRow(course, avgProgress, lastColumn) {
       writeSheet.getRange(row, lastColumn).setValue(percentDiff(prevVal, avgProgress));
     }
   }
+  writeSheet.getRange(numRows, 1).setValue("Average Progress across all Courses");
+  writeSheet.getRange(numRows, lastColumn+1).setValue(avgProgress(progArray));
 }
 
 function percentDiff(prevVal, avgProgress){
@@ -57,7 +62,7 @@ function percentDiff(prevVal, avgProgress){
   //     (Math.abs(prevVal-avgProgress))/((prevVal+avgProgress)/2)
   //   )
   // return percentChange
-  
+
   // Business Math! This will show negativos.
   var percentChange =
     (
@@ -65,3 +70,8 @@ function percentDiff(prevVal, avgProgress){
     )
   return percentChange
 }
+
+function avgProgress(progArray) {
+  var progCalc = progArray => progArray.reduce((a,b) => a + b, 0) / progArray.length
+  return progCalc
+}