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Re: executing a string in VM without using 'EXECUTE' [message #50636]

Fri, 06 October 2006 02:42

greg michael
Messages: 163
Registered: January 2006

Senior Member

I'm assuming your formula is just a sample, and that it could be any
other function of mr? I have the same problem (I posted something
similar a few months back). The conclusion was that the solution is to
write a code to break down the string and pass the pieces to the right
operators or functions (using call_function() ) to assemble the result.
It's not an entirely trivial excercise... so far I still working with
execute().

Look here - seems you're trying to do something very similar:
http://groups.google.de/group/comp.lang.idl-pvwave/browse_fr m/thread/d240948579293504

regards,
Greg

gav wrote:
> Hi Guys,
>
> There is probably a simple solution to this but I can't find it: I
> want to execute the string below in VM, without using (can't use) the
> 'EXECUTE' command. Any ideas / code etc greatfully received.
>
>
> com='speci=where('+formula+',speccount) ';write executable
> string
> t=execute(com) ;execute string
>
> the 'formula' is "(mr(*,*,159) le 8 or mr(*,*,170) gt mr(*,*,159)
> or mr(*,*,235) gt mr(*,*,159) )"
> cheers

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[Message index]

		Re: executing a string in VM without using 'EXECUTE' By: greg michael on Fri, 06 October 2006 02:42
		Re: executing a string in VM without using 'EXECUTE' By: Maarten[1] on Fri, 06 October 2006 02:40
		Re: executing a string in VM without using 'EXECUTE' By: Allan Whiteford on Fri, 06 October 2006 02:30

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