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Re: help with sorting vector elements in to subarrays [message #80227 is a reply to message #80223]

Mon, 21 May 2012 12:16

Russell Ryan
Messages: 122
Registered: May 2012

Senior Member

On May 21, 10:33 am, Trifon Trifonov <tito_trifo...@abv.bg> wrote:
> Hallo!
>
> I have this vector: zz = [5,6,9,10,11]
>
> Anybody can tell me how I can sort it like zz1 = [5,6], zz2 =[9,10,11]?
>
> Here is the code:
>
> zz =[]
> f=indgen(n_elements(amp))
>
> ;;I have amp[i] on witch some of the elements are identical.
> ;I need to take this [i]indexies and
> ;1-st to take it out
> ;2nd to write it to another array [sub arrays]
>
> for i=0L, n_elements(amp)-1 do begin
> a = where(amp[i] eq amp ,count)
> if count gt 0.0 then begin
> if n_elements(a) gt 1 then begin
> zz = [zz,i]
> endif
> endif
> endfor
>
> if n_elements(zz) ne 0.0 then begin
> match2,f,zz,subf,subzz
> f[subzz] = -1
> f = f[where(f[*] NE -1)]
> endif
>
> zz = Long[5]
> 4 5 9 10 11
>
> f = Int[13]
> 0 1 2 3 6 7 8 12 13 14
> 15 16 17
>
> All the best,
> Trifon

You're not making much sense... How does zz=[5,6,9,10,11] sort into
zz1=[5,6] and zz2=[9,10,11]? Are you just taking the first two and
last three elements?

Russell

But, yes, uniq() is probably going to help you. Just remember, uniq
only works correctly on arrays which are sorted!

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[Message index]

		Re: help with sorting vector elements in to subarrays By: greg.addr on Tue, 22 May 2012 05:27
		Re: help with sorting vector elements in to subarrays By: Tito on Mon, 21 May 2012 13:22
		Re: help with sorting vector elements in to subarrays By: Russell Ryan on Mon, 21 May 2012 12:16
		Re: help with sorting vector elements in to subarrays By: greg.addr on Mon, 21 May 2012 08:54
		Re: help with sorting vector elements in to subarrays By: Tito on Wed, 23 May 2012 08:35
		Re: help with sorting vector elements in to subarrays By: Tito on Thu, 31 May 2012 05:07
		Re: help with sorting vector elements in to subarrays By: greg.addr on Thu, 31 May 2012 05:36

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