gnuplot-info — For questions and discussion about gnuplot

Re: [Gnuplot-info] Compiling 5.x CVS on Debian Wheezy

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

sudo apt-get install libciaro2-dev
sudo apt-get install libpango1.0-dev
sudo apt-get install libvxm2-dev

That should get you going.

     John

On Thu, Aug 28, 2014 at 6:39 PM, David Drum <da...@mu...> wrote:
> Hello everyone,
>
> I am attempting to compile gnu plot 5.x from CVS on Debian Wheezy (7.6) but configure returns a variety of library not found warnings and resulting lack of support for certain, desired terminals (png or pngcairo). The libraries are installed via apt or manually (zlib). I’m curious if anyone has created a package or can otherwise assist. Thanks in advance for your time and insights.

[Gnuplot-info] Compiling 5.x CVS on Debian Wheezy

[David D. <da...@mu...>]

Hello everyone,

I am attempting to compile gnu plot 5.x from CVS on Debian Wheezy (7.6) but configure returns a variety of library not found warnings and resulting lack of support for certain, desired terminals (png or pngcairo). The libraries are installed via apt or manually (zlib). I’m curious if anyone has created a package or can otherwise assist. Thanks in advance for your time and insights.

david@pratt:~/src/gnuplot$ uname -a
Linux pratt 3.2.0-4-amd64 #1 SMP Debian 3.2.60-1+deb7u3 x86_64 GNU/Linux
david@pratt:~/src/gnuplot$ ./prepare
make: `Makefile.am' is up to date.
make: `Makefile.am' is up to date.
make: `Makefile.am' is up to date.
make: `Makefile.am' is up to date.
make: `Makefile.am' is up to date.

The gnuplot source code was successfully prepared.
Run configure now, then make && make install to build and install gnuplot.

david@pratt:~/src/gnuplot$ PKG_CONFIG_PATH="${HOME}/lib/pkgconfig" ./configure --prefix=$HOME
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking for style of include used by make... GNU
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking dependency style of gcc... gcc3
checking how to run the C preprocessor... gcc -E
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for ANSI C header files... yes
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checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking minix/config.h usability... no
checking minix/config.h presence... no
checking for minix/config.h... no
checking whether it is safe to define __EXTENSIONS__... yes
checking for gcc... (cached) gcc
checking whether we are using the GNU C compiler... (cached) yes
checking whether gcc accepts -g... (cached) yes
checking for gcc option to accept ISO C89... (cached) none needed
checking dependency style of gcc... (cached) gcc3
checking how to run the C preprocessor... gcc -E
checking for gcc... gcc
checking whether we are using the GNU Objective C compiler... no
checking whether gcc accepts -g... no
checking dependency style of gcc... gcc3
checking for an ANSI C-conforming const... yes
checking for inline... inline
checking for preprocessor stringizing operator... yes
checking whether ln -s works... yes
checking for gcc... (cached) gcc
checking whether we are using the GNU C compiler... (cached) yes
checking whether gcc accepts -g... (cached) yes
checking for gcc option to accept ISO C89... (cached) none needed
checking dependency style of gcc... (cached) gcc3
checking whether gcc and cc understand -c and -o together... yes
checking for off_t... yes
checking for _LARGEFILE_SOURCE value needed for large files... no
checking for special C compiler options needed for large files... no
checking for _FILE_OFFSET_BITS value needed for large files... no
checking for pkg-config... /usr/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking for LIBCERF... yes
checking for library containing cdawson... none required
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checking for tex... tex
checking for latex... latex
checking for pdflatex... pdflatex
checking for dvips... dvips
checking for troff... troff
checking for kpsexpand... kpsexpand
checking for texhash... texhash
checking for X... no
checking for MS-DOS/djgpp/libGRX... no
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checking for sin... yes
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checking dirent.h usability... yes
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checking for stdbool.h that conforms to C99... yes
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checking if malloc(0) returns 0... yes
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checking types of arguments for select... int,fd_set *,struct timeval *
checking for tputs in -lncurses... no
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checking for remove_history in -lreadline... no
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configure: WARNING: GNU readline not found - falling back to builtin readline
checking for library containing rl_ding... no
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checking for gdlib-config... no
checking for gdImageCreateTrueColor in -lgd... no
configure: WARNING: libgd not found or too old, version >= 2.0 is required
checking for library containing iconv_open... none required
checking iconv.h usability... yes
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checking for LUA... no
checking for LUA... no
configure: WARNING: Could not find support for lua using pkg-config.
checking for library containing luaL_openlibs... no
checking for multi-byte support in x11... checking for XmbDrawString in -lX11... no
checking for pkg-config... (cached) /usr/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking whether we are using the GNU C++ compiler... yes
checking whether c++ accepts -g... yes
checking dependency style of c++... gcc3
checking how to run the C++ preprocessor... c++ -E
checking for wx-config... no
configure: WARNING: wxWidgets can't be found. You can try --with-wx=DIR to give the right path to wx-config. The wxWidgets terminal will not be compiled.
checking for CAIROPANGO... configure: WARNING:
Package requirements (cairo >= 0.9.0 pango >= 1.10 pangocairo >= 1.10) were not met:

No package 'cairo' found
No package 'pango' found
No package 'pangocairo' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables CAIROPANGO_CFLAGS
and CAIROPANGO_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.

configure: WARNING: The wxWidgets terminal will not be compiled.
checking for PANGO_1_10_2... no
checking for CAIROPDF... configure: WARNING:
Package requirements (       cairo >= 1.2 cairo-pdf >= 1.2 pango >= 1.10 pangocairo >= 1.10 glib-2.0) were not met:

No package 'cairo' found
No package 'cairo-pdf' found
No package 'pango' found
No package 'pangocairo' found
No package 'glib-2.0' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables CAIROPDF_CFLAGS
and CAIROPDF_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.

configure: WARNING: The cairo terminals will not be compiled.
checking for QT... configure: WARNING:
Package requirements (Qt5Core Qt5Gui Qt5Network Qt5Svg Qt5PrintSupport) were not met:

No package 'Qt5Core' found
No package 'Qt5Gui' found
No package 'Qt5Network' found
No package 'Qt5Svg' found
No package 'Qt5PrintSupport' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables QT_CFLAGS
and QT_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.

checking for QT... configure: WARNING:
Package requirements (QtCore >= 4.5 QtGui >= 4.5 QtNetwork >= 4.5 QtSvg >= 4.5) were not met:

No package 'QtCore' found
No package 'QtGui' found
No package 'QtNetwork' found
No package 'QtSvg' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables QT_CFLAGS
and QT_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.

configure: WARNING: The Qt terminal will not be compiled.
configure: creating ./config.status
config.status: creating Makefile
config.status: creating config/Makefile
config.status: creating demo/Makefile
config.status: creating demo/plugin/Makefile
config.status: creating docs/Makefile
config.status: creating m4/Makefile
config.status: creating man/Makefile
config.status: creating share/Makefile
config.status: creating share/LaTeX/Makefile
config.status: creating src/Makefile
config.status: creating src/beos/Makefile
config.status: creating src/wxterminal/Makefile
config.status: creating src/qtterminal/Makefile
config.status: creating term/Makefile
config.status: creating tutorial/Makefile
config.status: creating config.h
config.status: executing depfiles commands
config.status: executing default commands

** Configuration summary for gnuplot 5.1:

gnuplot will be compiled with the following terminals:

  Standalone terminals: yes (always builtin)
    canvas, cgm, context, corel, dumb, dxf, eepic, emf, emtex,
    epslatex, fig, hpgl,latex, metafont, metapost, mif, pcl5,
    postscript, pslatex, pstex, pstricks, qms, svg,
    tek40xx, tek410x, texdraw, tgif, tkcanvas, tpic, vttek

  dot-matrix terminals: no (use --with-bitmap-terminals to enable)
    epson, nec, okidata, tandy, and seiko dp414 printers
    hp500c, hpdj, hpljii, hppj, pbm, sixel, starc

  X Window System terminal: no (requires X libraries)
  PDFlib pdf terminal: no (use --with-pdf to enable)
  linux terminal (vga console): no (use --with-linux-vga to enable)
  vgagl terminal ((s)vga console): no (use --with-linux-vga to enable)
  ggi terminal: no (use --with-ggi to enable, requires libggi)
  gpic terminal: no   (use --with-gpic to enable)
  mif terminal: no   (use --with-mif to enable)
  caca terminal: no (requires libcaca >= 0.99.beta15)
  aqua terminal (OSX): no
  libgd-based png, jpeg, and gif terminals: no (see config.log)
  cairo-based terminals: no (requires cairo>1.2, pango>1.10)
  lua/TikZ terminal: no
  wxt terminal: no (requires C++, wxWidgets>2.6, cairo>0.9, pango>1.10)
  Qt terminal: no (use --with-qt or --with-qt=qt4 to enable

  Additional platform-specific or older terminals omitted by default:
   gpic, mif (FrameMaker 3), hp2623a, hp2648, imagen, kyocera
   pm (makefile.os2), be (BeOS), svga (MSDOS/djgpp)
   sun, windows (several options)

gnuplot will be compiled with the following configurable features:

  Mouse support in interactive terminals: no
  Typing <space> in plot window raises console
  Maximum number of parallel axes: 5
  Placement of rectangles and other objects: yes
  Readline library: builtin minimal (use --with-readline=gnu for GNU readline)
  Command-line history file: yes
  Check current directory for .gnuplot file: no (use --with-cwdrc to enable)
  Sort help/subtopic tables by column: no (use --without-row-help to enable)
  cerf() and other special functions from libcerf: yes
  plugin support for loading external functions: yes
  Use TeX kpsexpand to search for fonts: no (use --with-kpsexpand to enable)
  Hidden3d optimization (gridbox/quadtree/none): quadtree
  Allow deprecated syntax: no (use --enable-backwards-compatibility)
  Statistical summary of data ("stats" command): yes

gnuplot will install the following additional materials:

  LaTeX tutorial: no
  cfg file for epslatex terminal: yes
  TeX *.sty for lua/tikz terminal: no
  TeX files will be installed in /home/david/share/texmf/tex/latex/gnuplot
                               (use --with-texdir=DIR to change)
  Help file: yes (always), in ${datarootdir}/gnuplot/5.1/gnuplot.gih
  PostScript prologue files: yes (always)
david@pratt:~/src/gnuplot$

Regards,

David Drum
da...@mu...
-- 
"Penultimate."  Ooh!  Second-best word ever!--Frazz

Re: [Gnuplot-info] Step function not starting at absolute 0

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

These two plots may help you see what is going on.

plot [-1:1] [-1:1] x with steps
plot [-1:1] [-1:1] x with fsteps

     John

On Mon, Aug 25, 2014 at 12:07 AM, GOO Creations <goo...@gm...> wrote:
> Hi all,
>
> I'm trying to create a simple step function. I have this weird problem that
> the x-values of my function do not start at absolute 0, therefore creating a
> skew function. Here is my code:
>
>    /set xzeroaxis lc "black"//
>    //set yzeroaxis lc "black"//
>    //set terminal pdf//
>    //set output "step.pdf"//
>    //f(x)= x <= 0 ? -1 : 1//
>    //plot f(x) lw 2 lc "black"//
>    /
>
>
> I've also attached the output PDF. As you can see the middle part of the
> function is not parrallel with the y-axis. Does anyone know what I'm missing

Re: [Gnuplot-info] Step function not starting at absolute 0

[GOO C. <goo...@gm...>]

Thanks, that did the trick. though it would be something like this.

Chris

On 2014/08/25 11:57 AM, Marek W. Gutowski wrote:
> > From: GOO Creations
> > To: gnu...@li...
> > Cc:
> > Date: 2014/8/25, Mon 16:07
> > Subject: [Gnuplot-info] Step function not starting at absolute 0
> >
> > Hi all,
> >
> > I'm trying to create a simple step function. I have this weird 
> problem that
> > the x-values of my function do not start at absolute 0, therefore 
> creating a
> > skew function. Here is my code:
> >
> >    /set xzeroaxis lc "black"//
> >    //set yzeroaxis lc "black"//
> >    //set terminal pdf//
> >    //set output "step.pdf"//
> >    //f(x)= x <= 0 ? -1 : 1//
> >    //plot f(x) lw 2 lc "black"//
> >    /
> >
> >
> > I've also attached the output PDF. As you can see the middle part of 
> the
> > function is not parrallel with the y-axis. Does anyone know what I'm 
> missing
> >
> > Chris
>
> This is not strange because the sampling points in x axis is a finite 
> number.
> (default 100).
> Increasing sample number like "set sample 1000", the appearance will 
> be better but
> that is the results mere approximation will be better.
>
> Tatsuro
>
>
>
> Here are my "two cents":
>
> 1. Original function has a jump at x=0.  Formally, nothing like vertical
> line should be drawn at x=0.  The reason for "incorrect" drawing
> has been already pointed by Tatsuro.
>
> 2. Correct solution is to define TWO functions:
> f(x) = x<=0.0?-1.0:1/0
> g(x)=x>0.0?1.0:1/0
>
> and plot them both, say
> plot [*:*][-1.1:1.1] f(x) lw 2 lc "black", g(x) lw 2 lc "black"
>
> Now you have a plot which is indeed correct.
>
> Cheers,
> Marek Gutowski

Re: [Gnuplot-info] Step function not starting at absolute 0

[Marek W. G. <gu...@if...>]

 > From: GOO Creations
 > To: gnu...@li...
 > Cc:
 > Date: 2014/8/25, Mon 16:07
 > Subject: [Gnuplot-info] Step function not starting at absolute 0
 >
 > Hi all,
 >
 > I'm trying to create a simple step function. I have this weird problem that
 > the x-values of my function do not start at absolute 0, therefore creating a
 > skew function. Here is my code:
 >
 >    /set xzeroaxis lc "black"//
 >    //set yzeroaxis lc "black"//
 >    //set terminal pdf//
 >    //set output "step.pdf"//
 >    //f(x)= x <= 0 ? -1 : 1//
 >    //plot f(x) lw 2 lc "black"//
 >    /
 >
 >
 > I've also attached the output PDF. As you can see the middle part of the
 > function is not parrallel with the y-axis. Does anyone know what I'm missing
 >
 > Chris

This is not strange because the sampling points in x axis is a finite number.
(default 100).
Increasing sample number like "set sample 1000", the appearance will be better but
that is the results mere approximation will be better.

Tatsuro



Here are my "two cents":

1. Original function has a jump at x=0.  Formally, nothing like vertical
line should be drawn at x=0.  The reason for "incorrect" drawing
has been already pointed by Tatsuro.

2. Correct solution is to define TWO functions:
f(x) = x<=0.0?-1.0:1/0
g(x)=x>0.0?1.0:1/0

and plot them both, say
plot [*:*][-1.1:1.1] f(x) lw 2 lc "black", g(x) lw 2 lc "black"

Now you have a plot which is indeed correct.

Cheers,
Marek Gutowski

Re: [Gnuplot-info] Step function not starting at absolute 0

[Tatsuro M. <tma...@ya...>]

----- Original Message -----

> From: GOO Creations 
> To: gnu...@li...
> Cc: 
> Date: 2014/8/25, Mon 16:07
> Subject: [Gnuplot-info] Step function not starting at absolute 0
> 
> Hi all,
> 
> I'm trying to create a simple step function. I have this weird problem that 
> the x-values of my function do not start at absolute 0, therefore creating a 
> skew function. Here is my code:
> 
>    /set xzeroaxis lc "black"//
>    //set yzeroaxis lc "black"//
>    //set terminal pdf//
>    //set output "step.pdf"//
>    //f(x)= x <= 0 ? -1 : 1//
>    //plot f(x) lw 2 lc "black"//
>    /
> 
> 
> I've also attached the output PDF. As you can see the middle part of the 
> function is not parrallel with the y-axis. Does anyone know what I'm missing
> 
> Chris


This is not strange because the sampling points in x axis is a finite number.
(default 100).
Increasing sample number like "set sample 1000", the appearance will be better but 
that is the results mere approximation will be better.

Tatsuro  

[Gnuplot-info] Step function not starting at absolute 0

[GOO C. <goo...@gm...>]

Hi all,

I'm trying to create a simple step function. I have this weird problem 
that the x-values of my function do not start at absolute 0, therefore 
creating a skew function. Here is my code:

    /set xzeroaxis lc "black"//
    //set yzeroaxis lc "black"//
    //set terminal pdf//
    //set output "step.pdf"//
    //f(x)= x <= 0 ? -1 : 1//
    //plot f(x) lw 2 lc "black"//
    /


I've also attached the output PDF. As you can see the middle part of the 
function is not parrallel with the y-axis. Does anyone know what I'm missing

Chris

[Gnuplot-info] Step function not starting at absolute 0

[GOO C. <goo...@gm...>]

Hi all,

I'm trying to create a simple step function. I have this weird problem 
that the x-values of my function do not start at absolute 0, therefore 
creating a skew function. Here is my code:

    /set xzeroaxis lc "black"//
    //set yzeroaxis lc "black"//
    //set terminal pdf//
    //set output "step.pdf"//
    //f(x)= x <= 0 ? -1 : 1//
    //plot f(x) lw 2 lc "black"//
    /


I've also attached the output PDF. As you can see the middle part of the 
function is not parrallel with the y-axis. Does anyone know what I'm missing

Chris

[Gnuplot-info] Lost axis

[Stevens, D. <dav...@ri...>]

Hello,

   I am trying to enlarge the font size of my axis.  However, when I do, I
lose my axis in the output. I am probably not defining something properly.
Below is the script that I'm using:

bin(x,width)=width*floor(x/width)
#set terminal enhanced font 'Times,24'
set xlabel "LYS Distance (Angstroms)" font 'Times,24'
set ylabel "Frequency" font 'Times,24'
set key ins vert
set key top right
set key title 'Legend'
#set key font ",20"
set xrange [15:50]
set yrange [0:30000]
set xtics font "Times,24"
set ytics font "Times,24"
set terminal jpeg giant size 1000,800
set output "LYS Distance Histogram Full_test.jpg"
plot
'/home/ds9ug/HIV_Protease_Flaps/distances_100/HVR_800ns_charmm_LYS_distance.txt'
using (bin($1,binwidth)):(1.0) smooth frequency with lines title "1HVR
using Charmm27",
'/home/ds9ug/HIV_Protease_Flaps/distances_100/HVR_800ns_Amber_LYS_distance.txt'
using (bin($1,binwidth)):(1.0) smooth frequency with lines title "1HVR
using Amber ff99SB",
'/home/ds9ug/HIV_Protease_Flaps/distances_100/1HHP_800ns_amber_LYS_distance.txt'
using (bin($1,binwidth)):(1.0) smooth frequency with lines title "1HHP
using Amber
ff99SB",'/home/ds9ug/HIV_Protease_Flaps/distances_100/HHP_800ns_Charmm_LYS_distance.txt'
using (bin($1,binwidth)):(1.0) smooth frequency with lines title "1HHP
using Charmm27"

Also, how do I enlarge the font size for the legend?

As well, I'm getting the following error when I try to use the font
"Times".  gdImageStringFT: Could not find/open font while printing string
0 with font Times"

Thank you for your help,

David Stevens

-- 
David R. Stevens
Class of 2015
University of Richmond
www.linkedin.com/pub/david-stevens/7b/660/19a

Re: [Gnuplot-info] Broken CVS link on website demo page

[sfeam <sf...@us...>]

On Thursday, 14 August 2014 08:24:00 PM Tait wrote:
> 
> >From the demo page, "... it should be part of your installation,
> otherwise get it from the source code archive[1] or file-by-file from
> CVS[2]"
> 
> [1] http://sourceforge.net/project/showfiles.php?group_id=2055
> [2] http://cvs.sourceforge.net/viewcvs.py/gnuplot/gnuplot/demo/
> 
> The CVS link [2] is no longer valid. It should probably be
> http://gnuplot.cvs.sourceforge.net/viewvc/gnuplot/gnuplot/demo/.


 fixed

[Gnuplot-info] Broken CVS link on website demo page

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

>From the demo page, "... it should be part of your installation,
otherwise get it from the source code archive[1] or file-by-file from
CVS[2]"

[1] http://sourceforge.net/project/showfiles.php?group_id=2055
[2] http://cvs.sourceforge.net/viewcvs.py/gnuplot/gnuplot/demo/

The CVS link [2] is no longer valid. It should probably be
http://gnuplot.cvs.sourceforge.net/viewvc/gnuplot/gnuplot/demo/.

Re: [Gnuplot-info] CSV matrix using latest gnuplot 5.0 rc1

[Mathias B. <mat...@gm...>]

Thanks a lot ! It's working now

It seems that the "pixels" keyword made my day ! Without it, it didn't work
in my bash script

Thanks again

Mathias


2014-08-07 8:58 GMT+02:00 sfeam <sf...@us...>:

> On Wednesday, August 06, 2014 01:50:53 PM Mathias Brulatout wrote:
> > Hi Gnuploters,
> >
> > I'm utrying to plot data using a matrix with an svg output.
> >
> > Here is my data file :
> >
> >  ,30 ,60 ,90 ,120
> > 100, 3.2, 1.81, 1.59, 1.48
> > 200, 4.57, 2.93, 2.5, 2.03
> > 300, 6.26, 4.19, 3.38, 2.96
> > 400, 8.46, 5.67, 4.96, 3.68
> >
> > Actually, it's 10x10 CSV matrix with row and column labels, but I
> truncated
> > it to get a more readable 4x4 CSV matrix (still with row/column headers)
> >
> > And now my (minimal) script :
> >
> > set terminal svg
> > set output 'file.svg'
> > set datafile separator ","
> > plot 'file' matrix rowheaders columnheaders using 1:2:3 notitle  with
> image
> > set datafile separator
> >
> > Gnuplot doesn't complain at all, but I do !
> > x and y scale is OK, as well as the "color scale" from min to max.
> > However nothing is plot between my 2 axis ... It's not the first time I
> use
> > a svg terminal (although it's my first time with a matrix image).
> >
> > It seems that row/columnheaders is a quite new feature ... Is this not a
> > svg terminal feature yet? (is it output terminal-dependant?).
>
> Yes.  It's a new feature that will be in -rc2 but was not ready in time for
> rc1.
>
> Your test case works fine here with svg output.
> I used:
>
> $DATA << EOD
>   ,30 ,60 ,90 ,120
>  100, 3.2, 1.81, 1.59, 1.48
>  200, 4.57, 2.93, 2.5, 2.03
>  300, 6.26, 4.19, 3.38, 2.96
>  400, 8.46, 5.67, 4.96, 3.68
> EOD
>
> set datafile separator comma
> set term svg standalone
> set output 'plot.svg'
> plot $DATA matrix rowheaders columnheaders using 1:2:3 notitle  with image
> unset output
>
> Note that the display of image data in svg depends on how the
> browser/viewer
> chooses to render it.  You might try adding the "pixels" keyword at the end
> of the command to force it render each element independently of its
> neighbors.
>
>         Ethan
>
>
>
>
>
>
> >
> >
> > PS : It works perfectly with a png terminal.
> >
> ----------------------------------------------------------------------------
> > -- Infragistics Professional
> > Build stunning WinForms apps today!
> > Reboot your WinForms applications with our WinForms controls.
> > Build a bridge from your legacy apps to the future.
> >
> http://pubads.g.doubleclick.net/gampad/clk?id=153845071&iu=/4140/ostg.clktrk
> > _______________________________________________
> > gnuplot-info mailing list
> > gnu...@li...
> > Membership management via:
> > https://lists.sourceforge.net/lists/listinfo/gnuplot-info
>
>

Re: [Gnuplot-info] CSV matrix using latest gnuplot 5.0 rc1

[sfeam <sf...@us...>]

On Wednesday, August 06, 2014 01:50:53 PM Mathias Brulatout wrote:
> Hi Gnuploters,
> 
> I'm utrying to plot data using a matrix with an svg output.
> 
> Here is my data file :
> 
>  ,30 ,60 ,90 ,120
> 100, 3.2, 1.81, 1.59, 1.48
> 200, 4.57, 2.93, 2.5, 2.03
> 300, 6.26, 4.19, 3.38, 2.96
> 400, 8.46, 5.67, 4.96, 3.68
> 
> Actually, it's 10x10 CSV matrix with row and column labels, but I truncated
> it to get a more readable 4x4 CSV matrix (still with row/column headers)
> 
> And now my (minimal) script :
> 
> set terminal svg
> set output 'file.svg'
> set datafile separator ","
> plot 'file' matrix rowheaders columnheaders using 1:2:3 notitle  with image
> set datafile separator
> 
> Gnuplot doesn't complain at all, but I do !
> x and y scale is OK, as well as the "color scale" from min to max.
> However nothing is plot between my 2 axis ... It's not the first time I use
> a svg terminal (although it's my first time with a matrix image).
> 
> It seems that row/columnheaders is a quite new feature ... Is this not a
> svg terminal feature yet? (is it output terminal-dependant?).

Yes.  It's a new feature that will be in -rc2 but was not ready in time for 
rc1.

Your test case works fine here with svg output.
I used:

$DATA << EOD
  ,30 ,60 ,90 ,120
 100, 3.2, 1.81, 1.59, 1.48
 200, 4.57, 2.93, 2.5, 2.03
 300, 6.26, 4.19, 3.38, 2.96
 400, 8.46, 5.67, 4.96, 3.68
EOD

set datafile separator comma
set term svg standalone
set output 'plot.svg'
plot $DATA matrix rowheaders columnheaders using 1:2:3 notitle  with image
unset output

Note that the display of image data in svg depends on how the browser/viewer
chooses to render it.  You might try adding the "pixels" keyword at the end
of the command to force it render each element independently of its neighbors.

	Ethan






>
>
> PS : It works perfectly with a png terminal.
> ----------------------------------------------------------------------------
> -- Infragistics Professional
> Build stunning WinForms apps today!
> Reboot your WinForms applications with our WinForms controls.
> Build a bridge from your legacy apps to the future.
> http://pubads.g.doubleclick.net/gampad/clk?id=153845071&iu=/4140/ostg.clktrk
> _______________________________________________
> gnuplot-info mailing list
> gnu...@li...
> Membership management via:
> https://lists.sourceforge.net/lists/listinfo/gnuplot-info

[Gnuplot-info] CSV matrix using latest gnuplot 5.0 rc1

[Mathias B. <mat...@gm...>]

Hi Gnuploters,

I'm utrying to plot data using a matrix with an svg output.

Here is my data file :

 ,30 ,60 ,90 ,120
100, 3.2, 1.81, 1.59, 1.48
200, 4.57, 2.93, 2.5, 2.03
300, 6.26, 4.19, 3.38, 2.96
400, 8.46, 5.67, 4.96, 3.68

Actually, it's 10x10 CSV matrix with row and column labels, but I truncated
it to get a more readable 4x4 CSV matrix (still with row/column headers)

And now my (minimal) script :

set terminal svg
set output 'file.svg'
set datafile separator ","
plot 'file' matrix rowheaders columnheaders using 1:2:3 notitle  with image
set datafile separator

Gnuplot doesn't complain at all, but I do !
x and y scale is OK, as well as the "color scale" from min to max.
However nothing is plot between my 2 axis ... It's not the first time I use
a svg terminal (although it's my first time with a matrix image).

It seems that row/columnheaders is a quite new feature ... Is this not a
svg terminal feature yet? (is it output terminal-dependant?)

Thanks in advance ! Hope to get an answer soon.

PS : It works perfectly with a png terminal.

[Gnuplot-info] redicting the current view to a file

[Mahmood N <nt_...@ya...>]

Hello,

Using X11 terminal, I have magnified the plot by drawing a rectangle (using mouse) and now I want to redirect the current view to a ps file. How that is possible?


Regards,
Mahmood 

Re: [Gnuplot-info] Data values along a line in a pm3d map

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

Take a look at "help set table"

> I have used gnuplot to generate pm3d colour maps of my 3D data, but I need to find a way to plot the values of this map along a line.  Is there a way to define a line, by start and end coordinates, and then to read the pm3d map data at each x,y coordinate along this line and then plot this.  This would essentially be a line-out mechanism found in other plotting software.
> 
> If anyone knows a method to do this, or can point me to good online resources, I would really appreciate it.

Re: [Gnuplot-info] Multi-scale plot

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

> ... the data file contains 16k lines with one column and it looks like
> 
> 2032099
> 1688270
> 139926
> 96404
> 113337
> 1307914
> ...
> ...
> 
> So I want to "set logscale x 2" but the default behavior doesn't show 2032099

But in your example, these are your y-values, not your x-values, so a
logscale on x would seem to be putting the wrong scaling on both axes.

[Gnuplot-info] Data values along a line in a pm3d map

[Karlton S. <kar...@ge...>]

Dear All,

I have used gnuplot to generate pm3d colour maps of my 3D data, but I need to find a way to plot the values of this map along a line.  Is there a way to define a line, by start and end coordinates, and then to read the pm3d map data at each x,y coordinate along this line and then plot this.  This would essentially be a line-out mechanism found in other plotting software.

If anyone knows a method to do this, or can point me to good online resources, I would really appreciate it.

Karl Scheu

Re: [Gnuplot-info] Multi-scale plot

[Mahmood N. <nt_...@ya...>]

>Why on earth would you want to do that?  The count of data points is 
>self-evidently as linear a scale as there can be.  You would need a 
>really good reason to log-scale that, and I'd rather like to know what 
>that might be.
 
Well that was an example to show the problem. In fact, the data file contains 16k lines with one column and it looks like

2032099
1688270
139926
96404
113337
1307914
...
...

So I want to "set logscale x 2" but the default behavior doesn't show 2032099


> plot "data" using ($0+1):1 

Yes that fixes the problem.


Regards,
Mahmood 


On Friday, July 4, 2014 10:06 PM, Hans-Bernhard Bröker <HBB...@t-...> wrote:
 


On 04.07.2014 18:00, Mahmood Naderan wrote:
> Hello,
> Gnuplot assigns an index of 0 to the first line of the data points.

By default.  But you don't have to leave it at that.  See "help using" 
on what this does:

    plot "data" using ($0+1):1

> Problem is that when I run "set logscale x 2",

Why on earth would you want to do that?  The count of data points is 
self-evidently as linear a scale as there can be.  You would need a 
really good reason to log-scale that, and I'd rather like to know what 
that might be.


it automatically discard the first line, 1000, so it plots
>
> (2^0,2000) (2^1,3000)
>
> How can I tell Gnuplot to "plot x=0 as normal and set logscale x 2 for x>=1"

You can't, and I'm reasonably sure you don't really want to, either. 
For starters, where do you think "x = 0 as normal" would be, on a 
log-scaled x axis?  The same place as "2^0", leaving you with two points 
at the same x position?  Hardly.

Re: [Gnuplot-info] Multi-scale plot

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

On 04.07.2014 18:00, Mahmood Naderan wrote:
> Hello,
> Gnuplot assigns an index of 0 to the first line of the data points.

By default.  But you don't have to leave it at that.  See "help using" 
on what this does:

	plot "data" using ($0+1):1

> Problem is that when I run "set logscale x 2",

Why on earth would you want to do that?  The count of data points is 
self-evidently as linear a scale as there can be.  You would need a 
really good reason to log-scale that, and I'd rather like to know what 
that might be.

it automatically discard the first line, 1000, so it plots
>
> (2^0,2000) (2^1,3000)
>
> How can I tell Gnuplot to "plot x=0 as normal and set logscale x 2 for x>=1"

You can't, and I'm reasonably sure you don't really want to, either. 
For starters, where do you think "x = 0 as normal" would be, on a 
log-scaled x axis?  The same place as "2^0", leaving you with two points 
at the same x position?  Hardly.

[Gnuplot-info] Multi-scale plot

[Mahmood N. <nt_...@ya...>]

Hello,
Gnuplot assigns an index of 0 to the first line of the data points. For example, these data points

1000
2000
3000

are interpreted as (0,1000) (1,2000) (2,3000).
Problem is that when I run "set logscale x 2", it automatically discard the first line, 1000, so it plots

(2^0,2000) (2^1,3000)

How can I tell Gnuplot to "plot x=0 as normal and set logscale x 2 for x>=1"
?

 
Regards,
Mahmood

Re: [Gnuplot-info] plotting multiple data from multiple files on one graph

[Theo <th...@gm...>]

You may want to repeat the for loop for the 1:3 plots.
Something like this:

plot for [i=1:10] sprintf("File_%d",i) u 1:2 w l title sprintf("File_%d, 
Col2",i) , for [i=1:10] sprintf("File_%d",i) u 1:3 w l title 
sprintf("File_%d, Col3",i)

The title is just to make clear what you have plotted.
Maybe there are other ways to do it.
But is it what you were looking for?

[Gnuplot-info] plotting multiple data from multiple files on one graph

[<kul...@gm...>]

Hi,

Using Gnuplot 4.6 I'm trying to plot multiple data from multiple files 
on one graph. Lets say in each file I have 3 columns and I want to plot 
2 and 3 against 1 (x axis), to compare each column (2:1 and 3:1) between 
files . I'm using 'plot for' construction:

plot for [i=1:10] sprintf("file_%d", i) u 1:2 w lines u 1:3 w lines


The problem is that the graph shows column 2 and 3 values just for the 
first file being processed, for the others only last column is 
presented. Is there a way I would be able to present all columns for all 
files?


best regards.
  Michal

[Gnuplot-info] Plot 4D data with color as 4th dimension

[agrawalh <hrs...@gm...>]

I have a data in a text file in which each column is a separate dimension. I
want to plot this 4d data using the 4th column as color. I am attaching a
sample image of what my graph would be looking. Please help me through the
gnuplot script for it.
<http://gnuplot.10905.n7.nabble.com/file/n18622/h0Zwy.png> 



--
View this message in context: http://gnuplot.10905.n7.nabble.com/Plot-4D-data-with-color-as-4th-dimension-tp18622.html
Sent from the Gnuplot - User mailing list archive at Nabble.com.

[Gnuplot-info] Plotting a 2D matrix file

[Hamed A. <s.h...@ya...>]

I have a data file produced by the C programming language as:

 x      .1     .3     .4    .56
.1     .2     .1     .3    .76
.3     .4     .2     .2    .43
.6     .7     .4     .3    .67

in which the first row (.1     .3     .4    .56) corresponds to the values of x-axis, first column is related to the y-axis (.1   .3  .5) and other values correspond to the z-axis for each x and y values. For example, the .76 is the weight of point (.56 , .1). I want to plot this 2D matrix file as a 2d picture. I tried this command 

plot "file" matrix using 1:2:3 every :::1::1 w image
and plotted it.
My problem is that  Gnuplot use row and column numbers for x- and y-axis values not values on first row and column. 

When i use command

plot "file" binary matrix  w image
gives the error "Read grid of zero width".

Any help will be highly appreciated.

Hamed Ahmadi