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freqz issue

From: Laurent HAAS - F6FVY
Subject: freqz issue
Date: Mon, 6 Jan 2020 14:12:40 +0100
User-agent: Mozilla/5.0 (Windows NT 6.1; rv:60.0) Gecko/20100101 Thunderbird/60.9.1


I'm trying to experience basic signal processing with Octave, while the original article has been written for Matlab

I'm actually facing this issue :

In the "Plot the spectrum" section,


keeps the spectrum totally blank, and returns this error :

>> freqz(y(1:5000),1,[-4E6:.01E6:4E6],2.5E6);
error: __plt2vv__: vector lengths must match
error: called from
    __plt__>__plt2vv__ at line 482 column 5
    __plt__>__plt2__ at line 242 column 14
    __plt__ at line 107 column 18
    plot at line 223 column 10
    freqz_plot at line 55 column 3
    freqz at line 194 column 5

I'm running Octave 5.1.0 under Win7-32 bit

What am I missing ?

Thanks and regards


I never lose. I either win or learn - Nelson Mandela

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