BI and data quality Stefano Grazioli

Critical Thinking Bug bounty Easy Meter

You do the talking Name, major Learning objectives Things you like about the class Things that can be improved Attitude towards the Tournament

Homework Google’s Daily Cagr

Daily Cagr for Google You are an analyst at a broker firm. Many of our customers invest for short amounts of time on Google. They sell their shares within a few weeks…. I wonder: do they make any money out of it?

UML Activity Diagram - Daily Compound Average Growth of a Security (part II) Select the next column that has dates When the user presses a button, a file selection windows pops out. The user selects a file. The file is shown starting at “A1”. The start button becomes invisible. Three more buttons appear: “Clean phone numbers”, “Format Dates”, and “Compute Daily CAGR”. Select the next item [No More items in this column] [is a date] Highlight the cell in yellow Format as mm/dd/yyyy & clear highlight if any A [Compute] B [Format Dates] [Clean ph.no] A [No more columns] Select the next phone no. Count its digits B The user press the Compute Cagr button [Exactly 10 digits] Compute the Cagr for the next customer [(final price/initial price)^1/days ]-1 Highlight the cell in red Format as (xxx)-xxx-xxxx & clear highlight if any Print the Average of all Cagrs at the bottom of the Cagr column with a descriptive label. Print the result for that customer. In red if it is zero or negative. [No More Customers] A [No More Ph.No]

Suggestions Video available Give yourself plenty of time

WINIT What Is New In Technology?

Dates

Dates MyDate Year 2002 Month 11 Day 14 Week 45 .... ... Dim myDate As Date = "11/14/2002“ myDate.Year myDate.Month myDate.Day myDate.DayOfWeek myDate.DayOfYear ... MyDate Year 2002 Month 11 Day 14 Week 45 .... ...

A TimeSpan represents the elapsed time between two dates. Dim myDate1 As Date Dim myDate2 As Date Dim myTS As TimeSpan myDate1 = Range("A1").Value myDate2 = Range("A2").Value myTS = myDate2 - myDate1 Range("A3").Value = myTS.Days A TimeSpan represents the elapsed time between two dates. Date1 Date2 TIMESPAN

TimeSpan mySpan.Days gives you the total number of days mySpan.TotalDays gives you the total number of days, plus a fraction of day based on the hours

Cagr = compound average growth rate - calculated daily [(final price/initial price)^(1/days)]-1