gnuplot-info — For questions and discussion about gnuplot

Re: [Gnuplot-info] what version ?

[Tait <gnu...@t4...>]

There's also:
	print GPVAL_VERSION
	print GPVAL_PATCHLEVEL

And you can see more with "help variables",
"help gnuplot-defined variables", and "show variables all".


> gnuplot --version returns the version and patch level which can easily
> be intercepted and used.
> 
>     John
> 
> > For camparison sometimes i run different versions of gnuplot, lets say 4.0 and 4.2.
> > When starting gnuplot display a version string. Is there a way to get this information
> > inside a session. I tried 'help version' but that is the same for every version.

Re: [Gnuplot-info] what version ?

[Thomas S. <t.s...@fz...>]

walter harms <wharms <at> bfs.de> writes:

> 
> hi list,
> For camparison sometimes i run different versions of gnuplot,
> lets say 4.0 and 4.2.
> When starting gnuplot display a version string. Is there a
> way to get this information
> inside a session. I tried 'help version' but that is the same
> for every version.
> 
> re,
>  wh

either use

show version

or, starting from version 4.2, use the variables

GPVAL_VERSION
GPVAL_PATCHLEVEL

Re: [Gnuplot-info] Gnuplot and Qt

[janjust <tja...@un...>]

I' don't know the answer to your question but since you mentioned qt as your
framework I was wondering if you tried qwt libraries for qt? Are they
limited compared to gnuplot?
Goodluck,
     Tommy



karlahund wrote:
> 
> Hi everybody,
> 
> since my last question here was solved perfectly, I'm optimistic to find a
> solution to this topic:
> I'm currently working on a Linux application using C++ and the Qt
> framework. The software uses an I/O-stream to communicate with Gnuplot and
> is already able to plot a graph into a png file, which is opened by the
> C-code and displayed in a QGraphicsView. 
> This method is simple but the possibilites are limited. So, as you
> probably can guess, I'm trying to include the Gnuplot-window into my
> software. 
> 
> I've tried the following Gnuplot command from the documentation (83.78):
> set term x11 window "36003a8"   ("3600.." = winID of an empty QMainWindow)
> 
> Unfortunately Gnuplot responds with:
> Terminal type set to 'x11'
> undefined variable: window
> 
> What do you think about my attempt - is it even possible to implement
> Gnuplot into another application this way? Are there any easier
> possibilities?
> 
> Thanks a lot,
> Karl
> 
> 
> 
> 
> 

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[Gnuplot-info] Gnuplot and Qt

[karlahund <kar...@we...>]

Hi everybody,

since my last question here was solved perfectly, I'm optimistic to find a
solution to this topic:
I'm currently working on a Linux application using C++ and the Qt framework.
The software uses an I/O-stream to communicate with Gnuplot and is already
able to plot a graph into a png file, which is opened by the C-code and
displayed in a QGraphicsView. 
This method is simple but the possibilites are limited. So, as you probably
can guess, I'm trying to include the Gnuplot-window into my software. 

I've tried the following Gnuplot command from the documentation (83.78):
set term x11 window "36003a8"   ("3600.." = winID of an empty QMainWindow)

Unfortunately Gnuplot responds with:
Terminal type set to 'x11'
undefined variable: window

What do you think about my attempt - is it even possible to implement
Gnuplot into another application this way? Are there any easier
possibilities?

Thanks a lot,
Karl




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Re: [Gnuplot-info] what version ?

[BBands <bb...@gm...>]

gnuplot --version returns the version and patch level which can easily
be intercepted and used.

    John

john@linux-svlx:~> gnuplot --help
Usage: gnuplot [OPTION]... [FILE]
for X11 options see 'help X11->command-line-options'
  -V, --version
  -h, --help
  -p  --persist
  -e  "command1; command2; ..."
gnuplot 4.4 patchlevel 3
Report bugs to http://sf.net/projects/gnuplot/support
john@linux-svlx:~> gnuplot --version
gnuplot 4.4 patchlevel 3
john@linux-svlx:~>

On Mon, Nov 28, 2011 at 7:52 AM, walter harms <wh...@bf...> wrote:
> hi list,
> For camparison sometimes i run different versions of gnuplot, lets say 4.0 and 4.2.
> When starting gnuplot display a version string. Is there a way to get this information
> inside a session. I tried 'help version' but that is the same for every version.

[Gnuplot-info] gnuplot 4.4.4 for wxt in mac

[Peter <one...@ya...>]

Hello,

I tried to compile gnuplot 4.4.4 on mac leopard (10.5), the compilation is fine.
however, it will crash with the following error:

[Debug] 23:22:30: ../src/common/fileconf.cpp(991): assert "szValue.empty()" failed in DoWriteString(): can't set value of a group!

It looks fileconf.cpp is from wxwideget.

I also tried to compile in mac snow leopard (10.6).
I got the following compilation error.


In file included from ./plot.h:46,
from wxterminal/wxt_gui.h:108,
from wxterminal/wxt_gui.cpp:96:
./mouse.h:187: error: variable or field 'set_ruler' declared void
./mouse.h:187: error: '_Bool' was not declared in this scope
./mouse.h:187: error: expected primary-expression before 'int'
./mouse.h:187: error: expected primary-expression before 'int'
./mouse.h:195: error: '_Bool' has not been declared
In file included from wxterminal/wxt_gui.h:108,

the google search find same error one year ago.
  https://github.com/mxcl/homebrew/issues/561

the suggested solution in the above link is to disable wxt.


Any comments? thanks.


Peter

[Gnuplot-info] what version ?

[walter h. <wh...@bf...>]

hi list,
For camparison sometimes i run different versions of gnuplot, lets say 4.0 and 4.2.
When starting gnuplot display a version string. Is there a way to get this information
inside a session. I tried 'help version' but that is the same for every version.

re,
 wh

[Gnuplot-info] Excluding ranges from fit

[Miguel Rubio-R. <mru...@gm...>]

Hi all,

Can I define multiple ranges for the fit function? That is, if my xrange is
[1:100] and I want to fit [1:10] and [20:100] but exclude [10:20].

Thanks

Miguel

Re: [Gnuplot-info] Broken histograms when using smooth frequency on data file with discontinuities

[David L. <lin...@ie...>]

I agree that would work. However, my data file happens to also have
several data sets in it (i.e. blocks of data separated by two blank
lines), and I would like to retain that information.

Personally I don't quite understand why plotting with boxes should
yield discontinuities when crossing a gap in the data. Isn't this
kinda lika bug of sorts?

On Mon, Nov 14, 2011 at 10:43 PM, Hans-Bernhard Bröker
<HBB...@t-...> wrote:
> On 14.11.2011 17:23, David Lindelöf wrote:
>
> [...]
>
>> plot './data.dat' u (bin($2, 0.2)):(1) smooth frequency
>>
>> However, the 'data.dat' file has a number of discontinuities in it
>> (i.e. blank lines). This causes the output to show several sets of
>> histograms, one for each continuous set of data.
>>
>> Is there any workaround for this? I would like the histogram to show
>> the distribution in the whole file, and to ignore discontinuities.
>
> Then you'll have to get rid of those discontinuities.  You can do that
> statically or on-the-fly, as a preprocessing step before sending the data to
> gnuplot.  Something like the following might work:
>
>        plot "< grep -v '^$' data.dat" u (bin($2,0.2)):(1.0) sm freq
>
>



-- 
::::::::::::::::::::::::::::::::::::::::::::
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Better Software for Tomorrow's Cities:
  http://computersandbuildings.com
Follow me on Twitter:
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Re: [Gnuplot-info] epslatex: color cycling with columnstacked histogram

[Thomas S. <t.s...@fz...>]

MadMarvin <jan <at> thiart.de> writes:

> Hi,
> I'm trying to plot a columnstacked histogram with 15 entries. While the
> postscript or the png terminal automatically use a unique color for every
> entry, the epslatex terminal just relies on the default linetypes which
> means that entry number 10 will have the same red color as no 1, 11 will be
> green like no 2 and so on.
> 
> How can I manipulate the color palette for epslatex or the linetype colors?

by using the 'set linetype' command you may redefine the default
linetypes:

set linetype 10 linecolor rgb "green"

[Gnuplot-info] epslatex: color cycling with columnstacked histogram

[MadMarvin <ja...@th...>]

Hi,
I'm trying to plot a columnstacked histogram with 15 entries. While the
postscript or the png terminal automatically use a unique color for every
entry, the epslatex terminal just relies on the default linetypes which
means that entry number 10 will have the same red color as no 1, 11 will be
green like no 2 and so on.

How can I manipulate the color palette for epslatex or the linetype colors?
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Re: [Gnuplot-info] log(xy) not turning out to be log(x) + log(y)

[Hans-Bernhard B. <HBB...@t-...>]

On 24.11.2011 08:11, Anirban Gangopadhyay wrote:
>   p(x,y,n1,n2) = log10((x**n1) * (abs(y)**n2)) + log10(x)
>   q(x,y,n1,n2) = log10((x**n1) * x * (abs(y)**n2))

>   plot 'tsorted499diffVsB.dat' u (p(499,$1,3,0.66)):(p(499,$5,2,1)) every
> ::27::44 w p ls 1 t 'N=499(add)', 'tsorted499diffVsB.dat' u
> (q(499,$1,3,0.66)):(q(499,$5,2,1)) every ::27::44 w p ls 2 t
> 'N=499(multiply)'

Was there really no simpler way you could demonstrate the problem?

> Note that the functions p and q are the same function using the idea that
> log(product of two numbers) = sum of log of the two numbers, but the plot
> command does not result in overlapping plots.


I have attached the data
> file  'tsorted499diffVsB.dat' and the output file 'plot499.ps' here.

Sorry, but attachments sent via mailing lists often don't work very 
well.  Yours didn't make it.

Any
> help/clue as to what might be happening here will be appreciated.

Re: [Gnuplot-info] log(xy) not turning out to be log(x) + log(y)

[Thomas S. <t.s...@fz...>]

Anirban Gangopadhyay <gangopadhyay.anirban <at> gmail.com> writes:

> 
> Hi,
> 
> I used the following simple gnuplot script written below :
> 
>  set terminal postscript enhanced color 'Helvetica' 20
>  p(x,y,n1,n2) = log10((x**n1) * (abs(y)**n2)) + log10(x)
>  q(x,y,n1,n2) = log10((x**n1) * x * (abs(y)**n2))
>  set output 'plot499.ps'
>  plot 'tsorted499diffVsB.dat' u (p(499,$1,3,0.66)):(p(499,$5,2,1)) every
> ::27::44 w p ls 1 t 'N=499(add)', 'tsorted499diffVsB.dat' u
> (q(499,$1,3,0.66)):(q(499,$5,2,1)) every ::27::44 w p ls 2 t
> 'N=499(multiply)'
>  set terminal x11
> 
> Note that the functions p and q are the same function using the idea that
> log(product of two numbers) = sum of log of the two numbers, but the plot
> command does not result in overlapping plots. I have attached the data
> file  'tsorted499diffVsB.dat' and the output file 'plot499.ps' here. Any
> help/clue as to what might be happening here will be appreciated.
> 
> Anirban

if your numbers get too large,

log10(x)+log10(y)

will work perfectly, but

log10(x*y)

will fail because x*y is out of range.

maybe this is happening with your data?

Re: [Gnuplot-info] Greek label in data file

[Thomas S. <t.s...@fz...>]

Zhong Ren <renz <at> uchicago.edu> writes:

> I have been using Greek labels in a quoted string such as '{/Symbol a}' for
alpha.  I now need a lot of them
> stored in a column of a data file.  For example,
> 
> plot 'data.file' u 1:2:3 w labels
> 
> The third column is broken into '{/Symbol' and 'a}', which of course results
in "bad syntax in enhanced text
> string".  I cannot think of a way to fix this.  Any help would be very
appreciated.
> 
> Zhong Ren

you may enclose the strings in your datafile in double quotes:

1 1 "{/Symbol and a}"

[Gnuplot-info] Errorbars in Rowstacked Histogram

[Saravanan K. <sva...@gm...>]

Dear All,

I am using GNUPlot version 4.2. I had created a rowstacked, cluster
histogram chart.

Refer (Uploaded in MediaFire File Sharing site) - http://tinyurl.com/8398m68

Having hard time to get errorbar included in the histogram.

1. Code - sk_share.pg
Refer - http://codeupload.com/4668

2. Dataset - sk_share.dat
Refer - http://codeupload.com/4669

The dataset is arranged the below format
Cluster x
<Direction 1> <y1> <y2> <y3> <err_y1> <err_y2> <err_y3>
<Direction 2> <y1> <y2> <y3> <err_y1> <err_y2> <err_y3>

Do anyone know what is the way to get y-errorbar on the histogram? It
does not seem to be straightforward.

Hope you can help.

rgds
Saravanan K
svanan77[at]gmail.com

p/s Resending as the earlier msg seems not got through

[Gnuplot-info] Errorbars in Rowstacked Histogram

[Saravanan K. <sva...@gm...>]

Dear All,

I am using GNUPlot version 4.2. I had created a rowstacked, cluster
histogram chart.

Refer (Uploaded in MediaFire File Sharing site) - http://tinyurl.com/8398m68

Having hard time to get errorbar included in the histogram.

1. Code - sk_share.pg
Refer - http://codeupload.com/4668

2. Dataset - sk_share.dat
Refer - http://codeupload.com/4669

The dataset is arranged the below format
Cluster x
<Direction 1> <y1> <y2> <y3> <err_y1> <err_y2> <err_y3>
<Direction 2> <y1> <y2> <y3> <err_y1> <err_y2> <err_y3>

Do anyone know what is the way to get y-errorbar on the histogram? It
does not seem to be straightforward.

Hope you can help.

rgds
Saravanan K
svanan77[at]gmail.com

[Gnuplot-info] log(xy) not turning out to be log(x) + log(y)

[Anirban G. <gan...@gm...>]

Hi,

I used the following simple gnuplot script written below :

 set terminal postscript enhanced color 'Helvetica' 20
 p(x,y,n1,n2) = log10((x**n1) * (abs(y)**n2)) + log10(x)
 q(x,y,n1,n2) = log10((x**n1) * x * (abs(y)**n2))
 set output 'plot499.ps'
 plot 'tsorted499diffVsB.dat' u (p(499,$1,3,0.66)):(p(499,$5,2,1)) every
::27::44 w p ls 1 t 'N=499(add)', 'tsorted499diffVsB.dat' u
(q(499,$1,3,0.66)):(q(499,$5,2,1)) every ::27::44 w p ls 2 t
'N=499(multiply)'
 set terminal x11

Note that the functions p and q are the same function using the idea that
log(product of two numbers) = sum of log of the two numbers, but the plot
command does not result in overlapping plots. I have attached the data
file  'tsorted499diffVsB.dat' and the output file 'plot499.ps' here. Any
help/clue as to what might be happening here will be appreciated.

Anirban

[Gnuplot-info] Greek label in data file

[Zhong R. <re...@uc...>]

I have been using Greek labels in a quoted string such as '{/Symbol a}' for alpha.  I now need a lot of them stored in a column of a data file.  For example,

plot 'data.file' u 1:2:3 w labels

The third column is broken into '{/Symbol' and 'a}', which of course results in "bad syntax in enhanced text string".  I cannot think of a way to fix this.  Any help would be very appreciated.

Zhong Ren

[Gnuplot-info] Newhistogram: zero data columns and key height

[Giacomo M <jac...@gm...>]

Dear all,
I am using newhistogram and I am experiencing the following unwanted
behaviours:
1) thin colored lines appear on top of the bars (as if also "0-level" data
was represented)
2) key is taller than it should be (as if each newhistogram included their
own key entries even though I specified them only for the first one)

In particular, I used the commands:
set style data histogram
set style histogram rowstacked gap 1
set style fill pattern
plot newhistogram "N", "data.txt" i "N" u 2:xtic(1) t "wind" fill p 1 lc
rgb "#094f7e", "" i "N" u 3:xtic(1) t "photo", "" i "N" u 4:xtic(1) t
"coal" fill p 4 lc rgb "#ac0f0c", "" i "N" u 5:xtic(1) t "ccgt" fill p 5 lc
rgb "#91a00b", "" i "N" u 6:xtic(1) t "otherfuel",\
newhistogram "CN", "data.txt" i "CN" u 2:xtic(1) notitle fill p 1 lc rgb
"#094f7e", "" i "CN" u 3:xtic(1) notitle, "" i "CN" u 4:xtic(1) notitle
fill p 4 lc rgb "#ac0f0c", "" i "CN" u 5:xtic(1) notitle fill p 5 lc rgb
"#91a00b", "" i "CN" u 6:xtic(1) notitle,\
newhistogram "CS", "data.txt" i "CS" u 2:xtic(1) notitle fill p 1 lc rgb
"#094f7e", "" i "CS" u 3:xtic(1) notitle, "" i "CS" u 4:xtic(1) notitle
fill p 4 lc rgb "#ac0f0c", "" i "CS" u 5:xtic(1) notitle fill p 5 lc rgb
"#91a00b", "" i "CS" u 6:xtic(1) notitle,\
...

and I obtained this:
http://db.tt/1xjMh1Ye

I'm using gnuplot 4.5 patchlevel 0 (last modified 2011-10-14, system
MS-Windows 32 bit)

Any help is more than appreciated,
thanks,

Giacomo M


PS: any suggestions on how to clean up the plot command is also very
welcome, thanks!

Re: [Gnuplot-info] PS output with bottom margin

[Ricardo S <sup...@gm...>]

Hi Thomas, thanks for your reply. I solved the problem. I was using
the set ratio, and that was adding bottom margin. I removed and now
I'm using only set size, then it's perfect.

Thanks,
Ricardo.


On Sat, Nov 19, 2011 at 2:14 PM, Thomas Sefzick <t.s...@fz...> wrote:
> Ricardo S <super.ismiti <at> gmail.com> writes:
>
>>
>> Hello all,
>>
>> I'm having some difficulties on configuring the margins in a PS output
>> file. In my gnuplot script, I have the following lines:
>>
>> ...
>> set tmarg 0
>> set bmarg 0
>> set lmarg 0
>> set rmarg 0
>> set origin 0.0,0.315
>> ...
>>
>> I manage to have a very nice positioning of my plot regarding top,
>> left and right margins. However, I still have a lot of remaining
>> bottom margin. How could I get rid of it?
>>
>> Thanks,
>> Ricardo.
>
> are you printing the postscript output to paper or are you including it
> in a document?
>
> do you specify a size when setting the postscript terminal?
>
> why are you shifting the plot in y-direction with 'set origin'?
>
>
> ------------------------------------------------------------------------------
> All the data continuously generated in your IT infrastructure
> contains a definitive record of customers, application performance,
> security threats, fraudulent activity, and more. Splunk takes this
> data and makes sense of it. IT sense. And common sense.
> http://p.sf.net/sfu/splunk-novd2d
> _______________________________________________
> gnuplot-info mailing list
> gnu...@li...
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Re: [Gnuplot-info] PS output with bottom margin

[Thomas S. <t.s...@fz...>]

Ricardo S <super.ismiti <at> gmail.com> writes:

> 
> Hello all,
> 
> I'm having some difficulties on configuring the margins in a PS output
> file. In my gnuplot script, I have the following lines:
> 
> ...
> set tmarg 0
> set bmarg 0
> set lmarg 0
> set rmarg 0
> set origin 0.0,0.315
> ...
> 
> I manage to have a very nice positioning of my plot regarding top,
> left and right margins. However, I still have a lot of remaining
> bottom margin. How could I get rid of it?
> 
> Thanks,
> Ricardo.

are you printing the postscript output to paper or are you including it
in a document?

do you specify a size when setting the postscript terminal?

why are you shifting the plot in y-direction with 'set origin'?

[Gnuplot-info] PS output with bottom margin

[Ricardo S <sup...@gm...>]

Hello all,

I'm having some difficulties on configuring the margins in a PS output
file. In my gnuplot script, I have the following lines:

...
set tmarg 0
set bmarg 0
set lmarg 0
set rmarg 0
set origin 0.0,0.315
...

I manage to have a very nice positioning of my plot regarding top,
left and right margins. However, I still have a lot of remaining
bottom margin. How could I get rid of it?

Thanks,
Ricardo.

Re: [Gnuplot-info] polar plot issue in gnuplot v4.4 and v4.5

[Thomas S. <t.s...@fz...>]

bluebluesky <one2001boy <at> yahoo.com> writes:

> ...
> When I create a graphics with polar plot in gnuplot 4.4 or 4.5 in windows, 
> it will create an extra line with marked tick values. However, it doesn't
> have such an issue in gnuplot 4.2 (in windows) or gnuplot 4.4 in linux. Does
> anybody have similar experience? How can I remove that extra line?
> ...

this raxis is a new feature in the development version of gnuplot.
to switch it off :

unset raxis
unset rtics

[Gnuplot-info] polar plot issue in gnuplot v4.4 and v4.5

[bluebluesky <one...@ya...>]

Hi,

When I create a graphics with polar plot in gnuplot 4.4 or 4.5 in windows, 
it will create an extra line with marked tick values. However, it doesn't
have such an issue in gnuplot 4.2 (in windows) or gnuplot 4.4 in linux. Does
anybody have similar experience? How can I remove that extra line?


Attached below is the code I used to create polar plot
reset
set polar
plot '-' notitle with lines
0 0
0.00875095 0.0437408
0.0612567 0.301517
0.113762 0.538632
0.166268 0.738835
0.218774 0.88841
0.27128 0.977105
0.323785 0.998842
0.411295 0.884359
0.463801 0.73291
0.525057 0.493671
0.568812 0.293162
0.621318 0.0349967
0.630069 -0.8750


thanks.

Peter

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Re: [Gnuplot-info] Broken histograms when using smooth frequency on data file with discontinuities

[walter h. <wh...@bf...>]

Am 15.11.2011 17:08, schrieb Thomas Sefzick:
> David Lindelöf <lindelof <at> ieee.org> writes:
> 
>> I would like to plot the distribution of a variable and I follow the
>> directions given in the "Gnuplot in Action" book:
>>
>> I define a binning function:
>>
>> bin(x,s) = s*int(x/s)
>>
>> And then I use the plot command:
>>
>> plot './data.dat' u (bin($2, 0.2)):(1) smooth frequency
>>
>> However, the 'data.dat' file has a number of discontinuities in it
>> (i.e. blank lines). This causes the output to show several sets of
>> histograms, one for each continuous set of data.
>>
>> Is there any workaround for this? I would like the histogram to show
>> the distribution in the whole file, and to ignore discontinuities.
> 
> maybe use an external program to omit the blank lines:
> 
> plot '< awk "{if (NF) print}" ./data.dat' u (bin($2, 0.2)):(1) smooth frequency
> 
> "awk" should be installed on every unix system, for windows systems google
> for 'awk windows'.
> 
> 

 plot '< grep -v ^$ ./data.dat'  #seems more easy

just my 2 cents,
re,
 wh