[gradsusr] maskout problems with positive and negative numbers.

[Jeff Duda]

It would probably help if you left the skip function for the very end. I
don't see a need for using the skip command to merely define a new
variable. skip() is a display type command.

define negto10 = const(maskout(zcomp,zcomp-1),10,-u)

define mor4140 = const(maskout(negto10,41-negto10),40,-u)

d skip(mor4140,8,8)

Jeff Duda

On Thu, Oct 29, 2015 at 6:43 AM, Mikovitz, Colleen (LARC-E302)[SCIENCE
SYSTEMS AND APPLICATIONS, INC] <j.c.mikovitz at nasa.gov> wrote:

> You can make a negative version of your variable and do a similar
> process.  With a field I have on, limiting values between 200 and 300:
>
> 'negto200=const(maskout(toaup,toaup-200),200,-u)'
> 'revnegto200=-negto200'
> 'keep=revnegto200+300'
> 'backtogood=-1*(maskout(keep,keep)-300)'
> 'final=const(backtogood,300,-u)'
> 'd final’
>
>
> On Oct 28, 2015, at 10:27 PM, Christopher Gilroy <chris.gilroy at gmail.com>
> wrote:
>
> > Alright, so I'm unsure if maskout is really the option I need for both
> of these, but is there anyway to take any value less than 1 (even
> negatives) and replace them with 10? I seem to be able to do that with:
> >
> > 'define negto10= skip(const(maskout(zcomp,zcomp-0), 10, -u), 8, 8)'
> >
> > That gives me all positive numbers, great so far. Now, I'd like to also
> change the results of negto10 and turn all numbers larger than 41 to 40. I
> can't seem to figure that part out. I've tried all sorts of variants of:
> >
> > 'define mor4140 = skip(const(maskout(negto10,negto10+41), 40, -u), 8, 8)'
> >
> > all with no luck. Any thoughts?
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>
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-- 
Jeff Duda
Graduate research assistant
University of Oklahoma School of Meteorology
Center for Analysis and Prediction of Storms
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