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## Re: undefined "usagestr" in function Pwelch

**From**: |
Paul Kienzle |

**Subject**: |
Re: undefined "usagestr" in function Pwelch |

**Date**: |
Thu, 12 Sep 2002 22:33:09 -0400 |

On Thu, Sep 12, 2002 at 05:20:24PM -0600, Ajay Singh wrote:
>* I am trying to calculate the power spectrum using the Pwelch function.*
>* I call the function with following arguments:*
>* [Pxx,Pci,w]=pwelch(y1,8192,2E6,[],[],[],'whole',[],'linear')*
>* 8192: no of data points*
>* sampling time =0.5 microseonds and hence, sample frequency:2MHz*
>* *
>* It returns me following error*
>* *
>* `usagestr' undefined near line 144 column 13*
Thanks for the report.
>* *
>* "usagestr" is not an user difined arguement for pwelch, so how can I*
>* define it? Or what could be the reason for this error?*
Try dropping the extra []'s. The numbers are interpreted in positional
order: x, nfft, Fs, window, overlap, ci. There are six of them, and you
have have seven arguments that aren't strings.
The strings are interpreted in any order.
>* *
>* Thanks for the help*
>* *
>* Ajay*
>* *
>* *
>* *
>* *
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>* *
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Octave is freely available under the terms of the GNU GPL.
Octave's home on the web: http://www.octave.org
How to fund new projects: http://www.octave.org/funding.html
Subscription information: http://www.octave.org/archive.html
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