Обсуждение: Rate of increase/decrease for a set of values

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On 2009-07-14, thara <tharas@cdactvm.in> wrote:
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> Hello all,
>
> I have a table with two columns - one for survey date and the other one =
> for the number of fever cases registered on that date. Now, I would like =
> to know the overall rate of increase/decrease in the fever cases =
> registered in a particular interval (say, between two dates). Which =
> statistical measure I can use for computing this.

the difference divided by the time elapsed?

Hello,

Thanks Jasen Betts. Did you mean the difference between the maximum and minimum of number of registrations divided by the time interval?  If I got the following number of registrations in a week as

Survey Date    NoOfFeverCaseRegistrations
12/07/09              30
13/07/09              70
14/07/09              20
15/07/09              90
16/07/09              40
17/07/09              50
18/07/09              20

Although the survey does not indicate a steady increase of fever cases during this week, there is a tremendous increase on dates 13/07/09 and 15/07/09. Considering the whole week, I feel I should say there is an unusual increase in number of case registrations. How I can I do this. Can I use any statistical deviation measure for this? Have a great day. Thanks.






--
.regards
.thara s pillai