[ncl-talk] usage of "continue" [SEC=UNOFFICIAL]

[Dennis Shea]

Actually,

   i+=1

is not NCL legal.

===

This code is certainly not NCL ...

Do i=0,10
   Do j=0,20
      If(a(i).eq.b(j)) then
          X = j
          Go to 333
       End if
   End do
333 continue
End do

BUT

do i=0,10
   do j=0,20
      If(a(i).eq.b(j)) then
          X = j
          exit        ; exit 'j' loop
       end if
   end do         ; end 'j' loop
end do            ; end 'i' loop

The above 'exit' will jump to
 end do           ; end 'i' loop

On Tue, Oct 27, 2015 at 5:42 AM, Jack Ogaja <jack.ogaja at gmail.com> wrote:
> Hi Eunpa,
>
> In this case “continue” is a terminal statement. I suppose in ncl you would
> substitute that with a “while loop” syntax. For example
>
> ;———
>  i = 0
>  do j = n, m
>      do while ( i .lt. j)
>            X=j
>            i+=1
>     end do
> end do
> ;———
>
> see: http://www.ncl.ucar.edu/Document/Language/loops.shtml
>
> Jack
>
>
>
> On 27 Oct 2015, at 12:15, Eun-Pa Lim <E.Lim at bom.gov.au> wrote:
>
> Dear Jack
>
>
>
> Thanks for your reply J
>
>
>
> I was just trying to make very simple do loops looking like this in old
> fortran
>
>
>
> Do i=0,10
>
>    Do j=0,20
>
>       If(a(i).eq.b(j)) then
>
>           X = j
>
>           Go to 333
>
>        End if
>
>    End do
>
> 333 continue
>
> End do
>
>
>
> But "Go to " is not a statement used in NCL, and there is not much
> explanation about "continue" in the NCL page.
>
>
>
> There must be a way to do this in NCL I reckon!
>
>
>
> Cheers
>
>
>
> Eunpa
>
>
>
> Eun-Pa Lim
>
> Research Scientist
>
> Seasonal Prediction Science Team
>
> Centre for Australian Weather and Climate Research (CAWCR)
>
> Bureau of Meteorology
>
> Tel: +61-3-9669-4636
>
> http://www.cawcr.gov.au/staff/elim/index.php
>
>
>
> From: Jack Ogaja [mailto:jack.ogaja at gmail.com]
> Sent: Tuesday, 27 October 2015 10:10 PM
> To: Eun-Pa Lim
> Cc: ncl-talk at ucar.edu
> Subject: Re: [ncl-talk] usage of "continue" [SEC=UNOFFICIAL]
>
>
>
> Really…? I guess it will be easier if you show a piece of ncl script which
> gives a hint of what you are trying to achieve. In principle if you
> understand what “continue” means/does in ‘your preferred' language, then I
> assume you should be able to implement or know whether it is possible to
> implement a similar algorithm in ncl after reading the ncl-statements
> documentation and probably going through a few examples.
>
>
>
> Or you can just provide a Pseudocode of your intended program to make it
> easier for somebody to help.
>
>
>
> Jack
>
>
>
> On 27 Oct 2015, at 11:12, Eun-Pa Lim <E.Lim at bom.gov.au> wrote:
>
>
>
> Hi NCL users,
>
>
>
> Could anybody please teach me how to use "continue" in a do loop in NCL? I
> can't find an example in
> https://www.ncl.ucar.edu/Document/Manuals/Ref_Manual/NclStatements.shtml
>
>
>
> Many thanks!
>
>
>
> Eunpa
>
>
>
>
>
> Eun-Pa Lim
>
> Research Scientist
>
> Seasonal Prediction Science Team
>
> Centre for Australian Weather and Climate Research (CAWCR)
>
> Bureau of Meteorology
>
> Tel: +61-3-9669-4636
>
> http://www.cawcr.gov.au/staff/elim/index.php
>
>
>
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