Draw a doughnut chart
  Assume that we have the following data
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excuses,freq
trafic,30
sick,10
pet,5
family,10
others,20

  Step 1: highlight the data
  Step 2: click "Insert"
  Step 3: clikc "Other charts"
  Step 4: choose "Doughnut"

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Present your data in a bubble chart
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Step 0: generate our data set 
      
       Let type the following values in a row. 
       (assume that they are in A1, B1 until F1. 

1  5 10 20 30 40

In A1, we type the following formula. 

-fv(0.1,A1,0,100)

The copy the formula to B2, C2 until F2. 

Eventually, we have the following two rows. 
1       5        10       20     30	   40
110.00 161.051	259.37  672.75	1744.94	4525.93

  Step 1: hight the above two rows
  Step 2: click "Insert"
  Step 3: choose "Column"
  step 4: choose All Chart types
  Step 5: choose Bubble

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Other charts
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This category includes other charts

One x with two y's (y1 and y2)
  Assume that we have the following three columns. 
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x	y1	y2
1	1	2
2	2.2	3
3.2	4	7
4	6	5
8	10	1

  Step 1: high-light three columns
  Step 2: click "Insert"
  Step 3: choose "Lines"
  Step 4: choose "Other charts"
  Step 5: choose one type

Macro 4 pie 
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Using Macro could make our lives easier. 

Assume that we have three values in A1, A2 and A3. 
We plan to draw a pie, see the right image below. 

    Step 1: Copy the following macro

Sub PieA1A3()
    Range("A1:A3").Select
    ActiveSheet.Shapes.AddChart.Select
    ActiveChart.ChartType = xlPie
    ActiveChart.SetSourceData Source:=Range("Sheet1!$A$1:$A$3")
End Sub

    Step 2: Click "Developer", "Macro", enter any name, such as "tt". 
            Then click "Create". You will see the following two lines. 
Sub tt()

End Sub

    Step 3: Replace those two lines with your coped macro in Step 1. 
            Click "File", then "Close and Return to Microsoft Excel   Alt+Q". 

    Step 4: To use it, Click "Developer", "Macro", 
            find name of PieA1A3, "Run". 

            Note that eventually we could generate a button to simplify the step 4. 
            Simply click the button. 
            >c27(15)

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