Re: Information on porting graphing scripts between 2.1.x and 2.9/3.0 ?

[Henry F. Mollet]

If I understand correctly, this implies that
plot(1:10,"L") at octave prompt should work with gnuplot 4.2 instead of
gnuplot 4.0? . 
It does not work when using octave-2.9.13/gnuplot-4.2 but it works when
using Octave-2.1.71/gnuplot-4.0 (see below).

According to Michael
>"Plotting system has been made compatible with Matlab. So if you want a
>impulse or step plot, use "stem" or "stair" respectively. This is how you would
>do it in Matlab."

But "stair" (aka steps plot style) did not work for me.

Henry
**********************
octave-2.9.13/gnuplot-4.2 results:

 [~] -bash-2.05b 501$ exec
'/Applications/Octave.app/Contents/Resources/bin/octave'
GNU Octave, version 2.9.13

octave-2.9.13:14> plot(1:10,"L")
error: plot: properties must appear followed by a value
error: evaluating if command near line 60, column 6
error: evaluating if command near line 59, column 4
error: evaluating if command near line 57, column 2
error: evaluating if command near line 56, column 7
error: evaluating while command near line 43, column 5
error: evaluating if command near line 30, column 3
error: called from `__plt__' in file
`/Applications/Octave.app/Contents/Resources/share/octave/2.9.13/m/plot/__pl
t__.m'
error: evaluating assignment expression near line 182, column 7
error: called from `plot' in file
`/Applications/Octave.app/Contents/Resources/share/octave/2.9.13/m/plot/plot
.m'
octave-2.9.13:14> 
********************
Octave-2.1.71/gnuplot-4.0 results:

 [~] -bash-2.05b 501$ octave
GNU Octave, version 2.1.71 (powerpc-apple-darwin8.1.0).
octave:1> plot(1:10,"L")
# give "stair" plot
octave:2> 
************************

on 8/14/07 1:51 PM, Tatsuro MATSUOKA at address@hidden wrote:

> I do not recommend to use gnuplot 4.0 for Octave 2.9.xx.
> Because old gnuplot sometimes suffers from long data lines
> from the Octave.(In Octave 2.9.xx, data are sent to
> gnuplot via pipe line using plot '-' command.)
> 
> About the pipeline prblem, see the following threads.
> 
> http://sourceforge.net/tracker/index.php?func=detail&aid=1673352&group_id=2055
> &atid=102055
> 
> I recommed to use CVS version of gnuplot.
> Although you have to build it by yourself.
> If you have gcc 4.2.1, I recommend to use it.
> 
> I am a cygwin user. CVS gnuplot build by gcc 4.2.1 as fast
> as window native one. (Previously the cygwin gnuplot was
> slower the native one.) I think the optimization ability
> of gcc 4.2.1 is fine.
> 
> --- Johan Persson <address@hidden> wrote:
> 
>> Hi,
>> 
>> I have a number of (signal processing) scripts that
>> have run well on the
>> previous major version 2.1.x. However, after doing
>> some tests with 2.9 I have
>> run into formatting problems.
>> 
>> Most the plain (calculating) scripts work fine but I
>> have several problems
>> with the plotting in 2.9. I'm using octave with
>> gnuplot 4.0.0
>> 
>> Simple things like formatting an impulse-plot (using
>> FMT "^") or showing a
>> step-plot (using FMT "L") does no longer seem to
>> work. I assume that the
>> formatting syntax has changed between 2.1 and 2.9
>> but I cant seem to find any
>> information
>> 
>> Is there some updated information available
>> somewhere I might have overlooked
>> (or is this maybe a defect)
>> 
>> A trivial example which in Octave 2.9.12 gives
>> errors are
>> 
>> octave:1> plot(1:10,"L")
>> 
>> error: plot: properties must appear followed by a
>> value
>> error: evaluating if command near line 60, column 6
>> error: evaluating if command near line 59, column 4
>> error: evaluating if command near line 57, column 2
>> error: evaluating if command near line 56, column 7
>> error: evaluating while command near line 43, column
>> 5
>> error: evaluating if command near line 30, column 3
>> error: called from `__plt__' in file
>> 
> `/usr/local/octave-2.9/share/octave/2.9.12/m/plot/__plt__.m'
>> error: evaluating assignment expression near line
>> 182, column 7
>> error: called from `plot' in file
>> 
> `/usr/local/octave-2.9/share/octave/2.9.12/m/plot/plot.m'
>> 
>> Rgds
>> Johan
>> 
>> P.S Is there some defect tracking system for Octave
>> (besides the bug mailing
>> list) its a little bit difficult to get an overview
>> on problem areas from the
>> mailing list.
>> 
>> _______________________________________________
>> Help-octave mailing list
>> address@hidden
>> https://www.cae.wisc.edu/mailman/listinfo/help-octave
>> 
> 
> 
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