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Re: matrices with different size [message #42247 is a reply to message #42151]

Thu, 13 January 2005 14:30

Chris Lee
Messages: 101
Registered: August 2003

Senior Member

In article <3374f20e.0501130821.41623a00@posting.google.com>, "V.S."
<ikverveelmijdood@hotmail.com> wrote:

> Hi,
> my problem is the following: I have a dataset with a strong sinusoidal
> component. However, its period and height are not constant. What I
> exactly want is to split-up the data in different parts, and put them
> into a matrix. Is this possible in IDL (and how?) to generate a matrix,
> filled with vectors that have a different length? I know that in Matlab
> "cell arrays" can be used.
> Best regards,
> Veerle

I have to ask why you want to split the dataset into (presumably) single
wave period and not something use Fourier or Wavelet analysis on the
full data but anyway....You could use pointers.
e.g

a=ptrarr(10)
a[0]=ptr_new(fltarr(100))
a[1]=ptr_new(fltarr(20))
a[2]=ptr_new(lonarr(10))
..
plot, *a[0] ;etc

Chris.

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[Message index]

		matrices with different size By: ikverveelmijdood on Thu, 13 January 2005 08:21
		Re: matrices with different size By: Chris Lee on Thu, 13 January 2005 14:30
		Re: Matrices By: Jeremy Bailin on Mon, 21 January 2013 12:06
		Re: Matrices By: fd_luni on Mon, 21 January 2013 09:55
		Re: Matrices By: fd_luni on Mon, 21 January 2013 09:39
		Re: Matrices By: Matthew Argall on Mon, 21 January 2013 07:21
		Re: Matrices By: Matthew Argall on Mon, 21 January 2013 07:20
		Re: Matrices By: Helder Marchetto on Mon, 21 January 2013 06:48

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