| Re: Format codes in IDL [message #31071] |
Tue, 18 June 2002 12:59  |
thompson
Messages: 584
Registered: August 1991
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Senior Member |
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astib@cc.usu.edu (Asti Bhatt) writes:
> Hi everybody,
> I am having a problem applying format codes to 'NaN', i.e.
> !VALUES.F_NAN. When I try to assign this value to some variable and
> read it from the command line in Macintosh and Linux, it gives me
> error that 'Format code ... cannot be applied to 'variable'. It gives
> it for all format codes. The interesting thing is, I have one such
> statement in my code, it runs okay under Linux machine, but crashes
> under Macintosh. I do not understand this. If anybody has got any
> experience regarding the same and would help me, I would appreciate
> that.
I'm not sure what you mean. Do you mean that if you do something like
IDL> a = !values.f_nan
idl> READ, prompt='Input A: ', a, format='(F10.7)'
that it will cause an error?
Bill Thompson
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| Re: Format codes in IDL [message #31219 is a reply to message #31071] |
Tue, 18 June 2002 21:40  |
astib
Messages: 15
Registered: June 2002
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Junior Member |
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Hi,
No, if I do like -
IDL>x = !values.f_nan
IDL> read,format = '(3f10.3)', b
and if in the input i give x, it will give me an error. Not only NaN,
but if I say x=2 and try to give it as input to read with format
specified, it will give me error. And this is typical to Macintosh. I
tried same thing under Linux and it works fine. Actually I have a .dat
file from which I need to read data, there are some NaN's also, and on
macintosh, it refuses to read it by giving this error - %Unable to
apply format code blah blah to 'variable'(whatever it is).
Do you know if rsi has any patch for this ? I searched the website for
this, but couldn't get anything.
Thanks,
Asti
thompson@orpheus.nascom.nasa.gov (William Thompson) wrote in message news:<aeo3f4$3g1$1@skates.gsfc.nasa.gov>...
> astib@cc.usu.edu (Asti Bhatt) writes:
>
>> Hi everybody,
>
>> I am having a problem applying format codes to 'NaN', i.e.
>> !VALUES.F_NAN. When I try to assign this value to some variable and
>> read it from the command line in Macintosh and Linux, it gives me
>> error that 'Format code ... cannot be applied to 'variable'. It gives
>> it for all format codes. The interesting thing is, I have one such
>> statement in my code, it runs okay under Linux machine, but crashes
>> under Macintosh. I do not understand this. If anybody has got any
>> experience regarding the same and would help me, I would appreciate
>> that.
>
> I'm not sure what you mean. Do you mean that if you do something like
>
> IDL> a = !values.f_nan
> idl> READ, prompt='Input A: ', a, format='(F10.7)'
>
> that it will cause an error?
>
> Bill Thompson
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