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Finishing the traffic analyzer
Arrays4/30
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  • 1. Little Muffin and Big Data
  • 2. Average value
  • 3. Finishing the traffic analyzer
  • 4. New data
  • 5. A lot of data? An array!
  • 6. Reading from an array using index
  • 7. Variable as index
  • 8. Array length
  • 9. Let’s hit arrays with loops!
  • 10. Summation in the loop
  • 11. Finishing refactoring
  • 12. One small analytical investigation
  • 13. Writing to an array by index
  • 14. The murderer is a butler!
  • 15. Summary of “Arrays”. Part 1
  • 16. Fifth program: Beginner decryptor
  • 17. Vague suspicions
  • 18. Swapping the elements
  • 19. Looking for the minimum element
  • 20. The minimum element is found!
  • 21. Starting sorting
  • 22. Continue sorting
  • 23. Finish sorting
  • 24. Testing the sorting
  • 25. Median of an odd number of elements
  • 26. Median of an even number of elements
  • 27. Green light
  • 28. The murderer is the butler, again!
  • 29. Summary of “Arrays”. Part 2
  • 30. Sixth program: Long jump records
A lot of data? An array!
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  • Theory
  • Theory
  • Comments

New data

  • Tr-r-r-raffic ranking is so-so?! Who do you think you are?! Puffs the tail
  • But, boss, it’s statistics for just three days, it may be inaccurate.
  • And how can you make it accurate? The tail is slowly coming down
  • We need more data. Wait for one month.
  • This is traffic for one more day. Analyze it right meow!

The boss’ feelings were hurt by the recommendation to try it harder with the blog. Plus, yesterday he released a very successful new video about how to ambush your owner and attack his feet using different techniques.

He calmed down (for now) after he heard about the lack of data. But he immediately sent the data for yesterday and he demands that they must be added to the program. And this is to our advantage. After all, a successful video means good traffic. And this will have a positive effect on the average traffic.

The boss will be delighted to see good results, and this will give us time to morally prepare him for possibly bad traffic results for the month.

Your urgent task is to add new data to the program. For this you need not only add a variable with traffic for yesterday (in the program and on the graph), but also update the formula for calculating the average. In the formula, add one more summand to the sum and also increase the divisor from three to four.

Comments

  • script.js
JavaScript
var expectedUsers = 1000; var firstDayUsers = 812; var secondDayUsers = 1360; var thirdDayUsers = 657; // Drawing the traffic graph muffin.plot(firstDayUsers, secondDayUsers, thirdDayUsers, expectedUsers); // Calculating the average traffic value var averageUsers = (firstDayUsers + secondDayUsers + thirdDayUsers) / 3; console.log('Average traffic: ' + averageUsers); if (averageUsers > expectedUsers) { console.log('Traffic is amazing. Keep up the good work!'); } else { console.log('Traffic is so-so. You need to try harder.'); }

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Console

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Result

Goalscompleted
  1. In the next line after the thirdDayUsers variable, add fourthDayUsers variable with 1247value.
  2. Add the fourthDayUsers parameter after thirdDayUsers in the muffin.plot()command.
  3. Change average value calculation. Add fourthDayUsers as the last summand and change the divisor to 4.

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