From help-request at octave dot org Sat Apr 15 16:52:46 2006 Subject: Re: Saving freqz plot From: "Dmitri A. Sergatskov" To: "Keith Goodman" Cc: "Shai Ayal" , "=?ISO-8859-1?Q?Cederik_Le=F3n_De_Le=F3n_Acu=F1a?=" , help@octave.org Date: Sat, 15 Apr 2006 15:50:58 -0600 On 4/15/06, Keith Goodman wrote: > On 4/15/06, Shai Ayal wrote: > > the print function is what you need. > > > > Shai > > > > > > Cederik León De León Acuña wrote: > > > Hi all: > > > > > > How can i save the plot-result from freqz to a file? > > How to save a plot seems to be a frequently asked question. Does > anyone remember a thread that contains a good answer and example that > we can add to the Octave FAQ? > > That will help users of current releases of Octave. For future > releases maybe we should add a paragraph to the help text of plot that > says something like: > > To save a plot, in one of several image formats such as png, use the > `print' command. > In this particular case (to save an output of "freqz" command to a png file) one pretty much has to use one's system PrintScreen option... octave:1> freqz ([1,2,3],[4,5,6],100,'whole') make a multiplot with 3 graphs and "print" will save only the last one into the file. In my opinion, "multiplot" feature of gnuplot is misused often for things that a separate page-layout program should be used. Again, in this particular case (freqz_plot) I would make all three graphs on a single plot with perhaps two different Y axes -- one for dB and another for degrees. Sincerely, Dmitri. -- ------------------------------------------------------------- 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 -------------------------------------------------------------