This is something that still puzzles me too. I'm having trouble coming up
with an example where a variable doesn't act as local. Consider the very
simple example below, with no locals defined.
-- procedure dummy() begin print( "Procedure: " + isvar("x") ) x = 1 end; dummy begin; main dummy() print( "Main: " + isvar("x") ) x = 5 print(x) dummy() print(x) end; main -- All of the isvar's return false, and dummy doesn't change the value of x in main. So what is the non-local behavior? Carl On Mon, Mar 17, 2014 at 2:10 AM, Jatin Kala <jatin.kala.jk@gmail.com> wrote: > > This is explained here: > http://www.ncl.ucar.edu/Document/Manuals/Ref_Manual/NclStatements.shtml > Search for: "The local statement and function and procedure scope" > > Those functions which do not have local variables declared, are probably > for the few functions which do Not define anything new within the function, > i.e., there is No "x=" within the function (hopefully). > > > > > > > On 17/03/14 4:51 PM, wen wrote: > > Hi ncl-users and Dennis, > I recently define ncl-fuction and procedure by myself to faciliate my > processing. I don't think I am familar with the local variable. I find that > some functions and procedures pre-defined in "contributed.ncl" and others > do not have local variable, but some do. I am wandering when the function > or procedure should have local variable. Could you give me some examples to > show the necessary to define local variable in a function or procedure. > Thank you! > > > > > -- > Best regards > Guanhuan Wen > > > _______________________________________________ > ncl-talk mailing list > List instructions, subscriber options, unsubscribe:http://mailman.ucar.edu/mailman/listinfo/ncl-talk > > > > _______________________________________________ > ncl-talk mailing list > List instructions, subscriber options, unsubscribe: > http://mailman.ucar.edu/mailman/listinfo/ncl-talk > > -- <http://www.cicsnc.org/> <http://www.facebook.com/cicsnc> *Carl J. Schreck III, PhD* *Research Associate* Cooperative Institute for Climate and Satellites NC <http://cicsnc.org/> North Carolina State University <http://ncsu.edu/> NOAA's National Climatic Data Center <http://ncdc.noaa.gov/> 151 Patton Ave, Asheville, NC 28801 e: cjschrec@ncsu.edu o: +1 828 257 3140 CycloneCenter.org: Help analyze tropical cyclones<http://www.cyclonecenter.org/> monitor.cicsnc.org/mjo: See recent MJO diagnostics<http://monitor.cicsnc.org/mjo/>
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