Median Date for time series data

S

salconflu

New Member
Joined
Mar 2, 2010
Messages
13
I have 30 years of time series data for which I would like to obtain approximate median dates for. The data looks like this:

[TABLE="width: 195"]
<tbody>[TR]
[TD]Date[/TD]
[TD]Live[/TD]
[/TR]
[TR]
[TD="align: right"]12/27/1976[/TD]
[TD="align: right"]1[/TD]
[/TR]
[TR]
[TD="align: right"]1/9/1977[/TD]
[TD="align: right"]1[/TD]
[/TR]
[TR]
[TD="align: right"]2/22/1977[/TD]
[TD="align: right"]1[/TD]
[/TR]
[TR]
[TD="align: right"]2/23/1977[/TD]
[TD="align: right"]1[/TD]
[/TR]
[TR]
[TD="align: right"]2/24/1977[/TD]
[TD="align: right"]1[/TD]
[/TR]
[TR]
[TD="align: right"]2/27/1977[/TD]
[TD="align: right"]1[/TD]
[/TR]
[TR]
[TD="align: right"]3/1/1977[/TD]
[TD="align: right"]2[/TD]
[/TR]
[TR]
[TD="align: right"]3/2/1977[/TD]
[TD="align: right"]2[/TD]
[/TR]
[TR]
[TD="align: right"]3/3/1977[/TD]
[TD="align: right"]8[/TD]
[/TR]
[TR]
[TD="align: right"]3/6/1977[/TD]
[TD="align: right"]1[/TD]
[/TR]
[TR]
[TD="align: right"]3/7/1977[/TD]
[TD="align: right"]3[/TD]
[/TR]
[TR]
[TD="align: right"]3/8/1977[/TD]
[TD="align: right"]24[/TD]
[/TR]
[TR]
[TD="align: right"]3/9/1977[/TD]
[TD="align: right"]5[/TD]
[/TR]
[TR]
[TD="align: right"]3/10/1977[/TD]
[TD="align: right"]5[/TD]
[/TR]
[TR]
[TD="align: right"]3/11/1977[/TD]
[TD="align: right"]2[/TD]
[/TR]
[TR]
[TD="align: right"]3/13/1977[/TD]
[TD="align: right"]1[/TD]
[/TR]
[TR]
[TD="align: right"]3/21/1977[/TD]
[TD="align: right"]1[/TD]
[/TR]
[TR]
[TD="align: right"]3/23/1977[/TD]
[TD="align: right"]1[/TD]
[/TR]
[TR]
[TD="align: right"]4/12/1977[/TD]
[TD="align: right"]2[/TD]
[/TR]
[TR]
[TD="align: right"]4/13/1977[/TD]
[TD="align: right"]1[/TD]
[/TR]
[TR]
[TD="align: right"]4/22/1977[/TD]
[TD="align: right"]3[/TD]
[/TR]
[TR]
[TD="align: right"]4/23/1977[/TD]
[TD="align: right"]1[/TD]
[/TR]
</tbody>[/TABLE]

Looking for an elegant way in Excel to return the date once the median (cumulative total for live)/2 is reached. I have tried using dget but since more than one record exceeds the median threshold, this returns an error. Does anyone have a suggestion for achieving this?
 

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[TABLE="width: 775"]
<tbody>[TR]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD]12/27/1976[/TD]
[TD="align: right"]1[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD]grand tot[/TD]
[TD="align: right"]59[/TD]
[TD][/TD]
[TD]row 2[/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]01/09/1977[/TD]
[TD="align: right"]1[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD]grand tot / 2[/TD]
[TD="align: right"]29.5[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD]2/22/1977[/TD]
[TD="align: right"]1[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD]2/23/1977[/TD]
[TD="align: right"]1[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD]2/24/1977[/TD]
[TD="align: right"]1[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD]2/27/1977[/TD]
[TD="align: right"]1[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]03/01/1977[/TD]
[TD="align: right"]2[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]03/02/1977[/TD]
[TD="align: right"]2[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]03/03/1977[/TD]
[TD="align: right"]8[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD="colspan: 4"]the formula putting the 1 in cell next to 24 is[/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]03/06/1977[/TD]
[TD="align: right"]1[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]03/07/1977[/TD]
[TD="align: right"]3[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD="colspan: 5"]=IF(AND(SUM($B$2:B13)>$H$3,SUM($C$1:C12)=0),1,"")[/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]03/08/1977[/TD]
[TD="align: right"]24[/TD]
[TD="align: right"]1[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]03/09/1977[/TD]
[TD="align: right"]5[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD]easy to use offset match to find the 1
and move 2 to the left to return the date

[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]03/10/1977[/TD]
[TD="align: right"]5[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]03/11/1977[/TD]
[TD="align: right"]2[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD]3/13/1977[/TD]
[TD="align: right"]1[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
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[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
</tbody>[/TABLE]
 
Last edited:
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