[Numpy-discussion] The date/time dtype and the casting issue

Alan G Isaac aisaac@american....
Thu Jul 31 08:33:00 CDT 2008

> A Thursday 31 July 2008, Matt Knox escrigué:
>> While on the topic of FAME... being a financial analyst, I really am 
>> quite fond of the multitude of quarterly frequencies we have in the 
>> timeseries package (with different year end points) because they are 
>> very useful when doing things like "calenderizing" 
>> earnings from companies with different fiscal year ends.

On Thu, 31 Jul 2008, Francesc Alted apparently wrote:
> Well, introducing a quarter should not be difficult.  We just wanted to 
> keep the set of supported time units under a minimum (the list is 
> already quite large).  We thought that the quarter fits better as 
> a 'derived' time unit, similarly as biweekly, semester or biyearly (to 
> name just a few examples).  However, if quarters are found to be much 
> more important than other derived time units, they can go into the 
> proposal too. 

Quarterly frequency is probably the most analyzed frequency 
in macroeconometrics.

Widely used macroeconometrics  packages (e.g., EViews) 
traditionally support only three explicit frequencies: 
annual, quarterly, and monthly.

Alan Isaac

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