Re: problem with example mjoclivar_14

Dear ncl users,
I would like to first thank Dennis and Maurice for their help and
suggestions. I have solved the problem by putting one of the statement out
of the do-loop. The result looks similar to the postscript file.
I then use the MJO_PC_INDEX.nc created to run the
mjoclivar_15.ncl<http://www.ncl.ucar.edu/Applications/Scripts/mjoclivar_15.ncl>and
mjoclivar_16.ncl<http://www.ncl.ucar.edu/Applications/Scripts/mjoclivar_15.ncl>.
For the phase space diagram, the one i plot is exactly opposite to that
shown on the example page (see the attached ps), while the composite plot is
similar to that of example 16. I do not know why because I haven't changed
the sign of the principle components. So do anyone know why I can't get the
desired output as shown in
mjoclivar_15.nc<http://www.ncl.ucar.edu/Applications/Scripts/mjoclivar_15.ncl>?
Can anyone get the plots as example 15 and 16 with my MJO_PC_INDEX? I have
attached my script, the MJO_PC_INDEX created and the output ps for your
reference. Thank you.

2010/1/7 Dennis Shea <shea@ucar.edu>

>
>
> shinn wong wrote:
>
>> Dear ncl users,
>> Attached is the code for computing multivariate eof. I have two questions
>> concerning the multi-variate eof.
>> 1)Is the sign of the combined eof arbitrary? Is it ok for me to change the
>> sign of the eof?
>>
>
> As noted by Maurice, you have already asked this question.
>
> (a) The sign of the EOF is arbitrary.
>
> (b) It is "ok" to change the sign.
>
>
> 2)There are errors when I'm trying to change the sign of the eof by
>> multiplying eof_cdata by -1 (line 151 to 153).
>>
>
> It is ok to multiply by -1 [integer or float]
>
>
> The error is:
>
>> fatal:NclGetArgValue: In correct argument type passed to the function 5
>> [main] ncl 2584_cygtls::handle_exceptions:Error while dumping state
>> <probably corrupted stack> Segmentation fault <core dumped>. So i want to
>> know what i actually did wrong.
>>
>
>
> This is an handle_exception "probably corrupted stack" ... I
> think this is a CYGWIN issue *not* NCL.
>
> ===
> I ran the script on locally available data. 2006 and 2007
> were not available. The data spanned 1985-2005. You can download
> the output at:
>
> http://www.cgd.ucar.edu/~shea/mjoclivar.1985-2005.ps.gz
>
> %> gzip -d mjoclivar.1985-2005.ps.gz
>
> then look at the postscript
>
>
> Thank you.
>>
>>
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>>
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>

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