[Tutor] summary stats grouped by month year
shantanoo at gmail.com
Tue May 8 09:43:39 CEST 2012
On Tue, May 8, 2012 at 12:46 PM, शंतनू <shantanoo at gmail.com> wrote:
> Python generally comes with support for sqlite3.
> you can store your date in to sqlite db and then try running sql query
> for finding of the details.
data not date.
> select year, sum(MeanRain) where year='1972' group by year;
> select month, sum(MeanRain) where month='Jan' group by month;
> ** Not sure regarding the exact sql query. sum function and 'group by'
> is important.
> On Tue, May 8, 2012 at 11:37 AM, questions anon
> <questions.anon at gmail.com> wrote:
>> I would like to calculate summary statistics of rainfall based on year and
>> I have the data in a text file (although could put in any format if it
>> helps) extending over approx 40 years:
>> YEAR MONTH MeanRain
>> 1972 Jan 12.7083199
>> 1972 Feb 14.17007142
>> 1972 Mar 14.5659302
>> 1972 Apr 1.508517302
>> 1972 May 2.780009889
>> 1972 Jun 1.609619287
>> 1972 Jul 0.138150181
>> 1972 Aug 0.214346148
>> 1972 Sep 1.322102228
>> I would like to be able to calculate the total rain annually:
>> YEAR Annualrainfall
>> 1972 400
>> 1973 300
>> 1974 350
>> 2011 400
>> and also the monthly mean rainfall for all years:
>> YEAR MonthlyMeanRain
>> Jan 13
>> Feb 15
>> Mar 8
>> Dec 13
>> Is this something I can easily do?
>> I have started by simply importing the text file but data is not represented
>> as time so that is probably my first problem and then I am not sure how to
>> group them by month/year.
>> Any feedback will be greatly appreciated.
>> Tutor maillist - Tutor at python.org
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