[Pw_forum] awin in average.x

[penghua]

Thanks Hande for your answer, but I am still confuse with how to get the value of awin，should I try a lot of data, and then select one?

 Thanks

penghua

shandong university

P.R.China

 



在2008-08-23，"Hande Ustunel" <hande at newton.physics.metu.edu.tr> 写道：
>Dear penghua,
>
>awin is the width of the window(=interval) around each point over which you
>average the planar average to get the macroscopic average. That is to say,
>it should correspond to something like, in Latex-ish math,
>
>    f_{mav}(x)=\int_{-awin/2}^{awin/2} f_{pav}(x-x') dx'
>
>where f is your quantity of choice (density, potential etc).
>
>Hope this helps.
>Best,
>Hande
>
>On Sat, 23 Aug 2008, penghua wrote:
>
>>  
>>  
>>  Hello everyone,
>> 
>>    I used averge.x to calculate the planer planar average (pav) and macroscopic average (mav) of the resulting quantity of a supercell, but I didn¡¯t understand the meaning of the 'awin' in the input file. What is the use of it? Besides when I changed the value of awin, I got different mav curve, so how should I set the value of awin.
>> 
>> Any help will be appreciated. 
>> 
>>  
>> 
>> penghua
>> 
>> shandong university
>> 
>> penghua8503 at 163.com
>> 
>> 
>
>-- 
>Hande Toffoli
>Department of Physics
>Office 439
>Middle East Technical University
>Ankara 06531, Turkey
>Tel : +90 312 210 3264
>http://www.physics.metu.edu.tr/~hande
>
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