[Tftb-help] RE: Tftb-help Digest, Vol 25, Issue 1

[Hamid Ahmadi]

To whom it may concern

I have sometimes faced to this error. I think the number of input points not to exceed about 3000 points.(According to my experience in TFR analysis) Of course the number of points is related to the number of window points, too.

Thank you very much

Best Wishes

Hamid R. Ahmadi

> Date: Fri, 8 Apr 2011 12:03:16 -0400
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> Subject: Tftb-help Digest, Vol 25, Issue 1
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> 1. use of tfrstft (FLOTTE Didier)
> 2. Re: use of tfrstft (Eric Chassande-Mottin)
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> Message: 1
> Date: Fri, 8 Apr 2011 15:28:15 +0200
> From: FLOTTE Didier <address@hidden>
> Subject: [Tftb-help] use of tfrstft
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> hello,
>
> We try to use the function tfrstft with a long signal, around 50,000 points and an error is occured:
>
> ??? Subscript indices must either be real positive integers or logicals.
> Error in ==> tfrstft at 85
> tfr(indices,icol)=x(ti+tau,1).*conj(h(Lh+1+tau));
> Error in ==> programme at 48
> tfr=tfrstft(file',t,128);
>
> file' is the signal, t give the vector time and we chose a length of 128 for the number of frequency bins. However, if we reduce the file vector to 256 points, the function works well.
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> Message: 2
> Date: Fri, 8 Apr 2011 15:33:10 +0200 (CEST)
> From: Eric Chassande-Mottin <address@hidden>
> Subject: Re: [Tftb-help] use of tfrstft
> To: FLOTTE Didier <address@hidden>
> Cc: "address@hidden" <address@hidden>
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>
> dear Didier,
>
> what is the contents of your vector t?
>
> eric
>
> On Fri, 8 Apr 2011, FLOTTE Didier wrote:
>
> > hello,
> >
> > We try to use the function tfrstft with a long signal, around 50,000 points and an error is occured:
> >
> > ??? Subscript indices must either be real positive integers or logicals.
> > Error in ==> tfrstft at 85
> > tfr(indices,icol)=x(ti+tau,1).*conj(h(Lh+1+tau));
> > Error in ==> programme at 48
> > tfr=tfrstft(file',t,128);
> >
> > file' is the signal, t give the vector time and we chose a length of 128 for the number of frequency bins. However, if we reduce the file vector to 256 points, the function works well.
> >
>
>
>
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> End of Tftb-help Digest, Vol 25, Issue 1
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