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Re: string manipulation [message #23959 is a reply to message #23898]

Tue, 27 February 2001 16:35

John-David T. Smith is currently offline

John-David T. Smith
Messages: 384
Registered: January 2000

Senior Member

Mark Hadfield wrote:
>
> "JD Smith" <jdsmith@astro.cornell.edu> wrote in message
> news:3A9C2CF5.F632B1AF@astro.cornell.edu...
>> [...]
>> new=strmid(key,0,transpose(p1))+'50'+strmid(key,tranpose(p2) )
>>
>> The key is putting the threading vector on its head, as a column
>> vector.
>
> Aaaaagh! The major reason I hate Matlab is all the "Have I got a row vector
> or a column vector?" rubbish! I feel like picking it up & shaking it &
> saying, "No, it's not a matrix, it's not a column vector, it's not a row
> vector, it's just a list of numbers. It's not dimensioned (n,1) and it's not
> dimensioned (1,n), it's dimensioned (n). You can print it vertically, you
> can print it horizontally, I don't care, it's just a list of numbers!"
>
> And now JD shows us how to confuse ourselves with row vectors and column
> vectors in IDL! As if HISTOGRAM wasn't enough. JD, I call down a curse on
> you, and your children, and your children's chil.....[falls from chair in
> paroxysm of rage]

Good on ya. I aim to please.

JD

P.S. The many ways to make column vectors:

IDL> cv=[[1],[2],[3]]

or

IDL> cv=rotate([1,2,3],1)

or

IDL> cv=transpose([1,2,3])

or

IDL> cv=array[0,*]

or

IDL> cv=reform([1,2,3],1,3)

or

IDL> cv=[1,2,3]##1

or

IDL> cv=1#[1,2,3]

or

...

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[Message index]

		string manipulation By: Craig Markwardt on Mon, 26 February 2001 14:34
		Re: string manipulation By: Kenneth P. Bowman on Wed, 28 February 2001 16:16
		Re: string manipulation By: Pavel A. Romashkin on Thu, 01 March 2001 11:54
		Re: string manipulation By: Mark Hadfield on Wed, 28 February 2001 12:30
		Re: string manipulation By: John-David T. Smith on Tue, 27 February 2001 16:35
		Re: string manipulation By: davidf on Tue, 27 February 2001 15:34
		Re: string manipulation By: Mark Hadfield on Tue, 27 February 2001 15:02
		Re: string manipulation By: John-David T. Smith on Tue, 27 February 2001 14:40
		Re: string manipulation By: landsman on Tue, 27 February 2001 13:29

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