st: statistical and stata problem

[tashi lama <ltashi32@hotmail.com>]

Hello, 

This problem might be little odd here since it is first statistical analysis/econometrics and then stata problem, but this isn't unfitting in the sense, analysis and stata are closely related.  I have a timeseries dataset for 3 documents

Doc 1

date                     hits
01jan2010(published date) 6
02jan2010                 4
03jan2010                 3
04jan2010                 7  

Doc 2

 date                      hits
02jan2010(published date)  10

06jan2010                   6

07jan2010                   4

 

Doc 3

 

02jan2010(published date)   4

05jan2010                   5

08jan2010                   2 
 

Question:

1. It isn't hard to identify time taken for Doc1, Doc2 or Doc3 (individually) to reach half the no of total hits from the date of publication. For instance, it takes 2 days for Doc 1 to reach half the no of total hits since publication. However, it isn't straight forward to identify time taken for all 3 documents(aggregate) to reach half the no of total hits because they have different date of publications, they were read in different dates etc etc. I am basically looking for a number(representative of all 3 docs) that give me the days to reach half the no of total hits since publication. Does anyone have any idea how to attack these kind of problems. 

 

2. I would like to think it is a sample/population problem but I am not too sure. 

 

3. Any link to research papers, desserations or documentations regarding problems like this would be very appreciated. 

 

Thanx.... 		 	   		  
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