[ncl-talk] delete 31 march for leap year

[Xi Chang]

Thanks Dennis,

Yes because i just need to analyze JFM (90 days) for 40 years. I know the
above trick but i just want delete 31 march only for LEAP YEAR not for
whole years. Do you know how to do that?

thanks

On Friday, April 17, 2015, Dennis Shea <shea at ucar.edu> wrote:

> [1] Yes ... there is a way
> [2] But ... why would ypu want to do that? It introduces a 'spectral gap'
> in the time series.
>
> ===
>   foo(time,lat,lon)
>
>   time has units understood by cd_calendar
>   https://www.ncl.ucar.edu/Document/Functions/Built-in/cd_calendar.shtml
>
>   TIME = cd_calendar(time, 0)
>
>   ikeep = ind(.not.(TIME(:,1).eq.3 .and. TIME(:,2).eq.31) )
>   FOO = foo(ikeep,:,:)
>   delete(foo)
>
>
>
> On Thu, Apr 16, 2015 at 4:16 PM, Xi Chang <xi.chang01 at gmail.com
> <javascript:_e(%7B%7D,'cvml','xi.chang01 at gmail.com');>> wrote:
>
>> Hi NCL,
>> I have 40 years daily data, i need to delete 31 march only for the leap
>> year, is there any quick way to do that?
>>
>> Regards
>>
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>
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