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Re: sorting the chars in a string [message #58632 is a reply to message #58631]

Mon, 11 February 2008 07:37

Foldy Lajos
Messages: 268
Registered: October 2001

Senior Member

On Mon, 11 Feb 2008, elwood wrote:

>
>
> I've been trying to think of a simple way to alphabetically sort an
> individual string
>
> Say I have the string x="abdcf"
> Is there a way to sort it and return a new string which is in correct
> alphabetical order,
> and/or reverse alphabetical order.
>
> Maybe its obvious, but I havent worked with strings too much in IDL
> and I cant seem to find
> a way to do this (strsplit and stregex somehow??)
>
> Thanks,
> Elisha
>

Just for fun, you can do it without an explicit sort:

b=byte(x)
h=histogram(b, rev=r)
x=string(b[r[n_elements(r)-n_elements(b):*]])
or
x=string(b[reverse(r[n_elements(r)-n_elements(b):*])])

regards,
lajos

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[Message index]

		Re: sorting the chars in a string By: Spon on Mon, 11 February 2008 08:23
		Re: sorting the chars in a string By: Foldy Lajos on Mon, 11 February 2008 07:37
		Re: sorting the chars in a string By: elwood on Mon, 11 February 2008 07:36
		Re: sorting the chars in a string By: lasse on Mon, 11 February 2008 07:02

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