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Math Forum » Discussions » Software » comp.soft-sys.matlab

Topic: ploting in db
Replies: 5   Last Post: Mar 19, 2013 6:49 PM

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Steven Lord

Posts: 17,944
Registered: 12/7/04
Re: ploting in db
Posted: Mar 19, 2013 1:05 PM
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"Yousef " <yayatoure@hotmail.com> wrote in message
news:kia1ui$9hl$1@newscl01ah.mathworks.com...
> Hi Guys,
>
> Can anybody help me to change my y-axis to (db) logarithmic scale..
> part of my code looks like:
>
>
> c=sqrt(abs(data(:,2)).^2 + abs(data(:,3)).^2);
> b=data(:,1);
> tmp=folderContents(i,:);
> plot(b,c,'red');
> BUT: I do not want to choose some commands like semilogy, loglog ...etc
> Tanks in advance for your help.......


SET the YScale property of your axes to 'log' and it will change to
logarithmic scale.

http://www.mathworks.com/help/matlab/ref/axes_props.html#XScale

--
Steve Lord
slord@mathworks.com
To contact Technical Support use the Contact Us link on
http://www.mathworks.com




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