[gradsusr] average over list of t not range
Stephen McMillan
smcmillan at planalytics.com
Tue May 17 16:49:10 EDT 2011
James,
I could not see one of the responses so this may be redundant, but see if
attached sample script helps.
Stephen McMillan
On Tue, May 17, 2011 at 4:01 PM, Jeffrey Duda <jdduda at iastate.edu> wrote:
> James,
> If your list of times is truly irregular (i.e., there is no mathematical
> pattern that can be used to shorthand the list, even if pointwise) then you
> will have to list out each of the times or files to get your average.
>
> Jeff Duda
>
>
> On Tue, May 17, 2011 at 2:41 PM, James Ciarlo` <james.ciarlo at physics.org>wrote:
>
>> you misunderstand me. I have two files, uwind.nc, vwind.nc and I want to
>> produce a spatial plot (lon = 35 68, lat = 0 75) of u;v for each of these
>> time values and average out the result. I have more lists, so typing out
>> define for each time value and then using x+y+...+z/n is not really a good
>> option
>>
>> can anyone help me out?
>>
>> On 17 May 2011 17:51, saeed bayat <saeedbayat7276 at gmail.com> wrote:
>>
>>> Hi James
>>> If you work in linux environment, you can use these command for create a
>>> file with time series or a file that is average of several files:
>>> for make a file include average all of files: ncra 1.nc 2.nc 3 .nc 4.nc
>>> 5.nc output.nc
>>> for create a file include time series of all files: ncrcat 1.nc 2.nc
>>> 3.nc 4.nc output.nc
>>>
>>> regards
>>>
>>> Saeed Bayat
>>> M.Sc Student of Climatology
>>> Ferdowsi University of Mashhad(Iran)
>>> saeedbayat7276 at gmail.com
>>>
>>> On Tue, May 17, 2011 at 12:49 PM, James Ciarlo` <
>>> james.ciarlo at physics.org> wrote:
>>>
>>>> Dear gradsusrs,
>>>>
>>>> I want to produce the average of several irregular lists of time stamps
>>>> for u and v wind. Now I know that normally one can use d
>>>> ave(u,time=00Z01JAN1985,time=00Z01JAN1990) for example but I want to
>>>> consider only the dates listed below. How can I do this?
>>>>
>>>> 00Z01AUG1984
>>>> 00Z01OCT1986
>>>> 00Z01DEC1989
>>>> 00Z01JUL1990
>>>> 00Z01DEC1992
>>>> 00Z01FEB1993
>>>> 00Z01FEB1994
>>>> 00Z01JUN1995
>>>> 00Z01APR1998
>>>> 00Z01SEP1998
>>>> 00Z01MAY2001
>>>> 00Z01JUN2001
>>>> 00Z01NOV2007
>>>> 00Z01APR2008
>>>> 00Z01NOV2008
>>>> 00Z01FEB2009
>>>> 00Z01JUL2009
>>>>
>>>>
>>>> Regards,
>>>>
>>>> James
>>>>
>>>> _______________________________________________
>>>> gradsusr mailing list
>>>> gradsusr at gradsusr.org
>>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>>>
>>>>
>>>
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>>>
>>
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>>
>
>
> --
> Jeff Duda
> Iowa State University
> Meteorology Graduate Student
> 3134 Agronomy Hall
> www.meteor.iastate.edu/~jdduda
>
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>
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