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Re: MAKE_ARRAY question [message #24727 is a reply to message #24726]

Fri, 13 April 2001 11:38

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

Paul van Delst <paul.vandelst@noaa.gov> writes:

> Ben Tupper wrote:
>>
>> Hi Paul,
>>
>> X = MAKE_ARRAY( n_pts, TYPE = 4 + KEYWORD_SET(DOUBLE), /NOZERO)
>>
>> The above should get you the correct type of array (Double type is 5
>> while Float type is 4.)
>
> True, but if double = 3 (in which case the keyword is also considered "set") the type
> would be wrong (a string array!).

Huh? So what if double EQ 3! Vis:

IDL> print, keyword_set(1)
1
IDL> print, keyword_set(2)
1
IDL> print, keyword_set(3)
1

For KEYWORD_SET, I think "truth" is defined as non-zero.

Ooops. What do you think this one should report? Heh.

print, keyword_set([0])

Craig

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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@cow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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[Message index]

		Re: MAKE_ARRAY question By: Paul van Delst on Fri, 13 April 2001 12:03
		Re: MAKE_ARRAY question By: Liam E. Gumley on Fri, 13 April 2001 11:52
		Re: MAKE_ARRAY question By: Liam E. Gumley on Fri, 13 April 2001 11:48
		Re: MAKE_ARRAY question By: Craig Markwardt on Fri, 13 April 2001 11:38
		Re: MAKE_ARRAY question By: Paul van Delst on Fri, 13 April 2001 10:26
		Re: MAKE_ARRAY question By: Paul van Delst on Fri, 13 April 2001 10:19
		Re: MAKE_ARRAY question By: btt on Fri, 13 April 2001 10:08

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