Saving values on different sheet

function copyPortfolioValue() {
  var rangeToLog = 'Investment!B71:F71';// this is where the data tocopy is located
  var sheetToLogTo = 'Value';// this is the name of new sheet we want to copy to
  var ss = SpreadsheetApp.getActive();// getting th spreadsheetvar 
  valuesToLog = ss.getRange(rangeToLog).getValues();// getting the desired data
  var logSheet = ss.getSheetByName(sheetToLogTo);// getting the sheet to copy
  if (!logSheet) {// just in case you didn’t createit
    logSheet = ss.insertSheet(sheetToLogTo);
  }
  var rowToAppend = valuesToLog.reduce(function (a, b) { return a.concat(b); })// format data
  logSheet.appendRow(rowToAppend);// copy the desired data to the new sheet
}