gnuplot-info — For questions and discussion about gnuplot

[Gnuplot-info] Horizontal histogram

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

Hi again,

I was looking for a way to plot a horizontal histogram, i.e. a histogram 
with horizontal bars at the y-axis.

The solutions I found so far:

http://gnuplot-tricks.blogspot.ch/2009/10/turning-of-histogram.html

This describes creating "normal" histogram and rotate the plot afterwards.
Since I would like to use such a horizontal histogram together with 
other plots in a multiplot environment I guess that this solution might 
become pretty complicated.

or

http://stackoverflow.com/questions/11266452/horizontal-histogram-in-gnuplot
Using the plotting style "boxxyerrorbars" as a workaround.

Are there any better ways to do it in the meantime?
Thanks, Theo.

Re: [Gnuplot-info] abort/continue plotting on error

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

> How about
> 
>   expected_file = "filename"
>   stat = system("wc ".expected_file)
>   if (stat ne "") {
>      plot expected_file 
>   }
> 
> If you want to test for a file that exists but is too short to
> contain the expected data:
> 
>   stat = system("wc ".expected_file)
>   if (stat ne ""  &&  int(word(stat,1)) > min_size) {
>     plot expected_file
>   } 
> 
> 	Ethan


You don't happen to have any similarly clever tricks that would work on
Windows, do you? (Gnuplot on windows does not support capturing system(),
``, etc.)

I've seen requests before for an option to disable gnuplot warnings (not
errors, necessarily, as recovery could be tricky). The noise can be
excessive when running in batch mode to create a large number of plots,
where empty data files or single-value ranges (for example) are not
worrisome.

(Sorry if this comes through twice.)

[Gnuplot-info] Skip plots in multiplot

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

Hi all,

I tried to skip one or several plots in a multiplot.

For example, in a 3x3 multiplot I would like to skip arbitrarily e.g. 4 
of the 9 plots.
Nevertheless, I would like to keep the 3x3 grid.

multiplot layout 3,3

do not plot File00
plot File01
do not plot File02
plot File10
plot File11
plot File12
do not plot File20
plot File21
do not plot File22

Instead of an empty plot with axes etc. I would like to have empty space 
and nothing plotted at this position.
In this example, defining a 5x1 multiplot and arranging the individual 
plots with appropriate offsets and sizes seems to be a pretty painful 
workaround.

Any better ideas?
Thanks, Theo.

Re: [Gnuplot-info] abort/continue plotting on error

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

Am 27.04.2013 16:26, schrieb seb_kramm:
> On 04/27/2013 05:54 AM, Ethan A Merritt wrote:
>> On Friday, 26 April 2013, seb_kramm wrote:
>>> Currently, when chaining different plot commands in a script, it seems that gnuplot
>>> aborts when encountering a error (unreadable data file, in my case).
>>> Is there any way to tell gnuplot not to abort and to move on to the next 'plot'
>>> command ? I searched the manual but found nothing about error handling.
>>
>> There is no general mechanism for continuing to execute a script after an error.
> 
> Thanks, indeed this would be a non trivial thing to adress.
> 
>>> The situation is as follows: I have many plots to draw from many computer-generated
>>> data files. The script file is itself generated. Now, some data files are ill formed
>>> or non-existent, due to some experimental error (say, the program that generates the
>>> data crashes).
>>> But I would like to have the plots for all the other datafiles.
>>
>> How about
>>
>>    expected_file = "filename"
>>    stat = system("wc ".expected_file)
>>    if (stat ne "") {
>>       plot expected_file
>>    }
>>
>> If you want to test for a file that exists but is too short to
>> contain the expected data:
>>
>>    stat = system("wc ".expected_file)
>>    if (stat ne ""  &&  int(word(stat,1)) > min_size) {
>>      plot expected_file
>>    }
> 
> Woaw, really clever trick, I didn't realize you could call shell commands from within 
> gnuplot. I will implement this, but the second version will not apply, as my data 
> files don't always have the same number of data points.
> Thank you Ethan.
> 
> Sebastien Kramm
> 
> 
hi,
just in case you simply want to check that you have a filesize > 0
test -s FILE would do the trick.
An other funny trick is to use stat.
stat -c "%s" FILE
It read the file system information instead of scanning the whole file.

just my 2 cents.
re,
 wh

Re: [Gnuplot-info] abort/continue plotting on error

[seb_kramm <seb...@ya...>]

On 04/27/2013 05:54 AM, Ethan A Merritt wrote:
> On Friday, 26 April 2013, seb_kramm wrote:
>> Currently, when chaining different plot commands in a script, it seems that gnuplot
>> aborts when encountering a error (unreadable data file, in my case).
>> Is there any way to tell gnuplot not to abort and to move on to the next 'plot'
>> command ? I searched the manual but found nothing about error handling.
>
> There is no general mechanism for continuing to execute a script after an error.

Thanks, indeed this would be a non trivial thing to adress.

>> The situation is as follows: I have many plots to draw from many computer-generated
>> data files. The script file is itself generated. Now, some data files are ill formed
>> or non-existent, due to some experimental error (say, the program that generates the
>> data crashes).
>> But I would like to have the plots for all the other datafiles.
>
> How about
>
>    expected_file = "filename"
>    stat = system("wc ".expected_file)
>    if (stat ne "") {
>       plot expected_file
>    }
>
> If you want to test for a file that exists but is too short to
> contain the expected data:
>
>    stat = system("wc ".expected_file)
>    if (stat ne ""  &&  int(word(stat,1)) > min_size) {
>      plot expected_file
>    }

Woaw, really clever trick, I didn't realize you could call shell commands from within 
gnuplot. I will implement this, but the second version will not apply, as my data 
files don't always have the same number of data points.
Thank you Ethan.

Sebastien Kramm

Re: [Gnuplot-info] abort/continue plotting on error

[Ethan A M. <eam...@gm...>]

On Friday, 26 April 2013, seb_kramm wrote:
> Hello,
> 
> Currently, when chaining different plot commands in a script, it seems that gnuplot 
> aborts when encountering a error (unreadable data file, in my case).
> 
> Is there any way to tell gnuplot not to abort and to move on to the next 'plot' 
> command ? I searched the manual but found nothing about error handling.

There is no general mechanism for continuing to execute a script after an error.

> I use 4.6 on Ubuntu.
> 
> The situation is as follows: I have many plots to draw from many computer-generated 
> data files. The script file is itself generated. Now, some data files are ill formed 
> or non-existent, due to some experimental error (say, the program that generates the 
> data crashes).
> But I would like to have the plots for all the other datafiles.

How about

  expected_file = "filename"
  stat = system("wc ".expected_file)
  if (stat ne "") {
     plot expected_file 
  }

If you want to test for a file that exists but is too short to
contain the expected data:

  stat = system("wc ".expected_file)
  if (stat ne ""  &&  int(word(stat,1)) > min_size) {
    plot expected_file
  } 

	Ethan

-- 
Tradition is not the worship of ashes, but the preservation of fire.
  - Gustav Mahler

[Gnuplot-info] abort/continue plotting on error

[seb_kramm <seb...@ya...>]

Hello,

Currently, when chaining different plot commands in a script, it seems that gnuplot 
aborts when encountering a error (unreadable data file, in my case).

Is there any way to tell gnuplot not to abort and to move on to the next 'plot' 
command ? I searched the manual but found nothing about error handling.

I use 4.6 on Ubuntu.

The situation is as follows: I have many plots to draw from many computer-generated 
data files. The script file is itself generated. Now, some data files are ill formed 
or non-existent, due to some experimental error (say, the program that generates the 
data crashes).
But I would like to have the plots for all the other datafiles.

I could manually edit the generated script file and remove the "bad" plot commands, 
but this will be tedious (I have many of these).

Thanks for any advice on the best way to handle this.

[Gnuplot-info] Frequency-smooth plotting for very small bins

[Pavel S. <ps...@tw...>]

Hi,

I have been trying to plot frequency-like plot for my data
but failed with both smooth kdensity/frequency approaches.

The input data are in the range of 0-15000, each value
can be present multiple times.
I tried to use the traditional trick for histogram plotting:

bw=10
set boxwidth bw
bin(x, width) = width*floor(x/width) + bw/2.0

plot [0:15000]"data" u (bin(\$1, bw)):(1.0) smooth freq w boxes

The problem is that instead of boxes I need just top line connecting the middle
point of each histogram bin. Of course, just using "with lines" in the above
won't work - in case some bin is empty, the line does not go to zero but
connects to first nonempty bin, which gives wrong result.

Any idea how to workaround this?

I tried to use smooth kdensity, which would give me similar enough
representation but clearly bandwidths like 1,5,10 are too small for ranges
around 10^5 and the output graph is just garbage.
I guess that's because I got under sampling frequency used by some
interpolation functions behind the scenes. Any way how could I increase
that sampling value?

Thanks for any hints,
Pavel

Re: [Gnuplot-info] polar plot

[Clement L. <the...@gm...>]

This isn't exactly what you're looking for but it may be helpful:
http://gnuplot-tricks.blogspot.co.uk/2010/02/parametric-plot-from-file-ii.html

On 17 April 2013 02:16, Ethan Merritt <eam...@gm...> wrote:
> On Tue, Apr 16, 2013 at 5:21 AM, Oberwittler, Dietrich
> <d.o...@mp...> wrote:
>> Hi,
>>
>> I didn't succeed to produce a polar plot which should ideally look like
>> these (Python): http://scienceoss.com/categories/python/matplotlib/ .
>> Basically, it is a bar chart  turned into a circular polar plot.
>
> I think the closest plotting style in gnuplot is to plot with impulses.
> See for example the final plot in
>    http://gnuplot.sourceforge.net/demo/poldat.html
>
> There is a rather ugly hack that could produce plots more similar
> in appearance to the example you gave.  Here is a proof of principle:
>
> set polar
> set grid polar
> set border 0
> set view equal xy
> set size square
> unset xtics
> unset ytics
> unset key
> set rrange [.1:10]
> set rtics axis scale 0.5,0 nomirror rotate by -270  offset 0, 0.7
> set rtics (2,4,6,8)
> set multiplot
>   plot [.5:.7] 2 with filledcurves r=1
>   plot [.9:1.1] 3 with filledcurves r=1
>   plot [1.4:2.1] 4 with filledcurves r=.1
>   plot [1.8:3.0] 3 with filledcurves r=2 lc rgb "gold"
> unset multiplot
>
>
>
>>
>> A basic example for the histogram would be:
>>
>> *********************************
>> reset
>> set xlabel "category"
>> set ylabel "value"
>> set grid
>> set xrange [0:7]
>> set yrange [0:10]
>> set style data boxes
>> set style fill solid 1.0
>> set boxwidth 0.95 relative
>> plot "temp1.dat" u 1:2 w boxes
>> **********************************
>>
>> where the data temp1.dat is:
>> ==================================
>> 1 7.5
>> 2 5.8
>> 3 7.9
>> 4 4.2
>> 5 5.0
>> 6 7.7
>> =================================
>>
>> I asked this question before but didn't get an answer. I would be very
>> happy about any hints!
>>
>> Dietrich
>>
>>
>>
>> --
>>
>>
>> Priv.-Doz. Dr. phil. Dietrich Oberwittler
>>
>> Max-Planck-Institut für ausländisches und internationales Strafrecht - Abteilung Kriminologie
>>
>> Max Planck Institute for Foreign and International Criminal Law - Department of Criminology
>>
>> Guenterstalstrasse 73, D-79100 Freiburg i.Br. (Germany)
>> Tel. ++49 761 7081 219, Fax ++49 761 7081 294
>> institute: http://www.mpicc.de/  personal: http://www.mpicc.de/ww/de/pub/home/oberwittler.htm
>>
>>
>>
>> ------------------------------------------------------------------------------
>> Precog is a next-generation analytics platform capable of advanced
>> analytics on semi-structured data. The platform includes APIs for building
>> apps and a phenomenal toolset for data science. Developers can use
>> our toolset for easy data analysis & visualization. Get a free account!
>> http://www2.precog.com/precogplatform/slashdotnewsletter
>> _______________________________________________
>> gnuplot-info mailing list
>> gnu...@li...
>> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
>
> ------------------------------------------------------------------------------
> Precog is a next-generation analytics platform capable of advanced
> analytics on semi-structured data. The platform includes APIs for building
> apps and a phenomenal toolset for data science. Developers can use
> our toolset for easy data analysis & visualization. Get a free account!
> http://www2.precog.com/precogplatform/slashdotnewsletter
> _______________________________________________
> gnuplot-info mailing list
> gnu...@li...
> https://lists.sourceforge.net/lists/listinfo/gnuplot-info

Re: [Gnuplot-info] polar plot

[Ethan M. <eam...@gm...>]

On Tue, Apr 16, 2013 at 5:21 AM, Oberwittler, Dietrich
<d.o...@mp...> wrote:
> Hi,
>
> I didn't succeed to produce a polar plot which should ideally look like
> these (Python): http://scienceoss.com/categories/python/matplotlib/ .
> Basically, it is a bar chart  turned into a circular polar plot.

I think the closest plotting style in gnuplot is to plot with impulses.
See for example the final plot in
   http://gnuplot.sourceforge.net/demo/poldat.html

There is a rather ugly hack that could produce plots more similar
in appearance to the example you gave.  Here is a proof of principle:

set polar
set grid polar
set border 0
set view equal xy
set size square
unset xtics
unset ytics
unset key
set rrange [.1:10]
set rtics axis scale 0.5,0 nomirror rotate by -270  offset 0, 0.7
set rtics (2,4,6,8)
set multiplot
  plot [.5:.7] 2 with filledcurves r=1
  plot [.9:1.1] 3 with filledcurves r=1
  plot [1.4:2.1] 4 with filledcurves r=.1
  plot [1.8:3.0] 3 with filledcurves r=2 lc rgb "gold"
unset multiplot



>
> A basic example for the histogram would be:
>
> *********************************
> reset
> set xlabel "category"
> set ylabel "value"
> set grid
> set xrange [0:7]
> set yrange [0:10]
> set style data boxes
> set style fill solid 1.0
> set boxwidth 0.95 relative
> plot "temp1.dat" u 1:2 w boxes
> **********************************
>
> where the data temp1.dat is:
> ==================================
> 1 7.5
> 2 5.8
> 3 7.9
> 4 4.2
> 5 5.0
> 6 7.7
> =================================
>
> I asked this question before but didn't get an answer. I would be very
> happy about any hints!
>
> Dietrich
>
>
>
> --
>
>
> Priv.-Doz. Dr. phil. Dietrich Oberwittler
>
> Max-Planck-Institut für ausländisches und internationales Strafrecht - Abteilung Kriminologie
>
> Max Planck Institute for Foreign and International Criminal Law - Department of Criminology
>
> Guenterstalstrasse 73, D-79100 Freiburg i.Br. (Germany)
> Tel. ++49 761 7081 219, Fax ++49 761 7081 294
> institute: http://www.mpicc.de/  personal: http://www.mpicc.de/ww/de/pub/home/oberwittler.htm
>
>
>
> ------------------------------------------------------------------------------
> Precog is a next-generation analytics platform capable of advanced
> analytics on semi-structured data. The platform includes APIs for building
> apps and a phenomenal toolset for data science. Developers can use
> our toolset for easy data analysis & visualization. Get a free account!
> http://www2.precog.com/precogplatform/slashdotnewsletter
> _______________________________________________
> gnuplot-info mailing list
> gnu...@li...
> https://lists.sourceforge.net/lists/listinfo/gnuplot-info

[Gnuplot-info] polar plot

[Oberwittler, D. <d.o...@mp...>]

Hi,

I didn't succeed to produce a polar plot which should ideally look like 
these (Python): http://scienceoss.com/categories/python/matplotlib/ . 
Basically, it is a bar chart  turned into a circular polar plot.

A basic example for the histogram would be:

*********************************
reset
set xlabel "category"
set ylabel "value"
set grid
set xrange [0:7]
set yrange [0:10]
set style data boxes
set style fill solid 1.0
set boxwidth 0.95 relative
plot "temp1.dat" u 1:2 w boxes
**********************************

where the data temp1.dat is:
==================================
1 7.5
2 5.8
3 7.9
4 4.2
5 5.0
6 7.7
=================================

I asked this question before but didn't get an answer. I would be very 
happy about any hints!

Dietrich



-- 


Priv.-Doz. Dr. phil. Dietrich Oberwittler

Max-Planck-Institut für ausländisches und internationales Strafrecht - Abteilung Kriminologie

Max Planck Institute for Foreign and International Criminal Law - Department of Criminology

Guenterstalstrasse 73, D-79100 Freiburg i.Br. (Germany)
Tel. ++49 761 7081 219, Fax ++49 761 7081 294
institute: http://www.mpicc.de/  personal: http://www.mpicc.de/ww/de/pub/home/oberwittler.htm

Re: [Gnuplot-info] gnuplot dies on me

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

On 15.04.2013 22:52, Lobb, Janos wrote:

> Gnuplot 4.2.5, OSX 10.7.5.

That version of gnuplot is, at a bit over 4 years, rather old.  Maybe 
you should start by updating to the current 4.6.2.

Re: [Gnuplot-info] Waterfall / Cascade Plot

[howudodat <pe...@ho...>]

I wanted to bring everyone up to the most current code I am working with and
what's left for me to figure out.  I have only one remaining issue: My data
file does not have a first line as x axis tics.  Our raw data file will
/normally / look like:

1.3e8, -95, -110, -105....
1.4ee8, -97- -103, -102...
...

with there being 601 columns of Z data (time) by 8192 rows of frequencies. 
In order for the below script to work, I had to */insert /* a row of
,1,2,3,4 I'd like to not insert that row into our raw data if possible.

I am now plotting with: gnuplot -e"filename=SOURCE" plot.plg and it reads
SOURCE.csv and outputs to SOURCE.png and SOUCE-sub.png

#common parameters for both plots
set term png size 1900,1080
set datafile separator ","
set pm3d
set xrange[*:*] reverse
set key autotitle columnhead
set hidden3d
set view 45,75,,0.85
set palette defined (-120 "yellow", -70 "red", -30 "blue")
set xtics 0,50,600
set grid x y z

# plot all the data
set output filename.'.png'
splot filename.'.csv' nonuniform matrix using 1:2:3 with pm3d lc palette

# plot only what we are looking for +- a bit
set output filename.'-sub.png'
sedcmd="<(sed -n '1p;1000,3000p' " .filename. ".csv)"
splot sedcmd nonuniform matrix using 1:2:3 with pm3d lc palette

exit




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[Gnuplot-info] gnuplot dies on me

[Lobb, J. <jan...@ya...>]

Hi,

Gnuplot 4.2.5, OSX 10.7.5.  The machine is a MacPro with 8GB RAM and 2x2 GHz Dual-Core Intel Xeon.

I have a big text file, 39.2MB and contains lines like this

Page : 24399257
Page : 24399258
Page : 24399259
Page : 24399260
Page : 24399261
Page : 24399262
Page : 24399263
Page : 9801816
Page : 9801817
Page : 9801818
Page : 9801819
Page : 9801820
Page : 9801821
Page : 9801822
Page : 9801823
Page : 26178960
Page : 26178961
….
…
…

This is a page allocation chain in sybase.

I tried to plot it with GnuPlot like:

gnuplot> plot "/Volumes/Data/PROJECTS/Fragmentation/2013-4-5/dem/c_textword.txt" using 3 with dots

and got this:

gnuplot-4.2.5(77385,0xac19d2c0) malloc: *** mmap(size=105418752) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
/usr/local/bin/gnuplot: line 71: 77385 Trace/BPT trap: 5       GNUTERM="${GNUTERM}" GNUPLOT_HOME="${GNUPLOT_HOME}" PATH="${PATH}" DYLD_LIBRARY_PATH="${DYLD_LIBRARY_PATH}" HOME="${HOME}" GNUHELP="${GNUHELP}" DYLD_FRAMEWORK_PATH="${DYLD_FRAMEWORK_PATH}" GNUPLOT_PS_DIR="${GNUPLOT_PS_DIR}" DISPLAY="${DISPLAY}" GNUPLOT_DRIVER_DIR="${GNUPLOT_DRIVER_DIR}" "${ROOT}/bin/gnuplot-4.2.5" "$@"


Any good hint how to overcome ?

Thanks ahead,

János
P.S.  I am able to plot smaller files of similar nature , the next in like is a 5.9 MB file and gnu plot did it.  But looks to me it is choking on the 39.2MB one.

[Gnuplot-info] Combination of cluster and stacked histogram

[LouisPhilippe <lou...@gm...>]

Hi everyone

I have been trying to make a combination of a stacked and a clustered
histogram. The end result should look something like this: 

<http://gnuplot.10905.n7.nabble.com/file/n17285/eimIntegrated.jpeg> 

But the difference being that the bars should be grouped together in pairs,
preferably over the same point on the x axis. The point of this graph is to
compare estimates versus actual values. (E <--> A) The x-axis representing
time. 

I have tried searching for something that could achieve this but I have
found no answer so far, all help is much appreciated. 

If something is unclear about what I am asking please tell me and I will try
to make it clearer. 

Kind regards

LP



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Re: [Gnuplot-info] Waterfall / Cascade Plot

[Thor A. <ta...@to...>]

On Fri, Apr 12, 2013 at 08:56:12AM -0700, howudodat wrote:
> Also, I have posted one of the source data files at
> http://www.earthbest.com/wf.csv.zip

According to 'help plot matrix' your data format is in an in-between
state, i.e. it is uniform but includes frequency in the first column. So
in order to plot it, you need to do a little pre-processing.

To convert the data to a uniform format the first column should be
removed, this can be done by a program called 'cut':

-- >8 --
set datafile separator comma
set view map
splot '< cut -d, -f2- wf.csv' matrix with image
-- >8 --

I've used 'map' and 'with image' because these use less memory.

It's bit more involved, but you can also convert the data to the
non-uniform format by adding the y-values as the first row, the sequence
can be generated by 'seq':

-- >8 --
set datafile separator comma
set view map
splot '< seq -s, 602; cat wf.csv' nonuniform matrix with image 
-- >8 --

-- 
best regards
Thor Andreassen

Re: [Gnuplot-info] Waterfall / Cascade Plot

[Peter C. <pe...@ho...>]

I tried that and end up getting no data to show up in the plot (and it 
appears to be 2d)
gnuplot> set view map
gnuplot> set datafile separator ","
gnuplot> unset ytics
gnuplot> set xrange[1:600]
gnuplot> set yrange[*:*]
gnuplot> set cbrange [-200:0]
gnuplot> splot 'wf.csv' matrix with image

GNUPLOT (plot_image):  Image grid must be at least 2 x 2.

And a flat 2d image was shown with no data plotted

tried again with:
gnuplot> set yrange[1:8192]
gnuplot> splot 'wf.csv' matrix with image
          warning: No usable data in this plot to auto-scale axis range
          z axis range undefined or overflow

Peter

On 4/12/2013 8:16 AM, walter harms wrote:
> i am not sure but maybe this can help you.
> i use gnuplot to visualize spectra. they are organized
> like value|value|value|....  all rows are the same length.
> my gnuplot file look like that:
>
> set view map
> set datafile separator "|"
> set palette rgbformulae 22,13,-31
> unset ytics
> set xrange [0:500]
> set yrange [*:*]
> set cbrange [0:100]
> splot "coinz" matrix with image
>
>

Re: [Gnuplot-info] Waterfall / Cascade Plot

[howudodat <pe...@ho...>]

Also, I have posted one of the source data files at
http://www.earthbest.com/wf.csv.zip
Peter



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Re: [Gnuplot-info] Waterfall / Cascade Plot

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

Am 12.04.2013 15:57, schrieb howudodat:
> I have used the following commands ( I didn't use the autotitle because the
> first row doesn't actually exist in the data file):
> gnuplot> set datafile separator "," 
> gnuplot> set grid x y z
> gnuplot> set hidden3d
> gnuplot> splot for [sec=1:600] 1:(sec):(column(sec+1)) 'wf.csv' with impulse
> lc palette 
> Warning: empty z range [1:1], adjusting to [0.99:1.01]
> 
> 
> gnuplot> splot for [sec=1:600] 1:(sec):(column(sec+1)) 'wf.csv' with impulse
> lc palette 
>                                 ^
>          ';' expected
> 
> gnuplot> 
> 
> and the resulting image is:
> <http://gnuplot.10905.n7.nabble.com/file/n17271/chart1.png> 
> 


i am not sure but maybe this can help you.
i use gnuplot to visualize spectra. they are organized
like value|value|value|....  all rows are the same length.
my gnuplot file look like that:

set view map
set datafile separator "|"
set palette rgbformulae 22,13,-31
unset ytics
set xrange [0:500]
set yrange [*:*]
set cbrange [0:100]
splot "coinz" matrix with image

Re: [Gnuplot-info] Waterfall / Cascade Plot

[howudodat <pe...@ho...>]

I think I might be missing a range, but not sure where to put it, here is
what I get now:
gnuplot>  splot for [sec=1:600] 'wf.csv' using 1:(sec):(column(sec+1)) with
impulse lc palette
         warning: No usable data in this plot to auto-scale axis range
             repeats (I'm guessing 8192 times)
         All points x value undefined

My x range should be from 135000000 to 160000000
My y range should be from 1 to 600
My z range should be around -120 to -60

Peter



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Re: [Gnuplot-info] Waterfall / Cascade Plot

[Ethan A M. <EAM...@gm...>]

On Friday, 12 April 2013, howudodat wrote:
> I have used the following commands ( I didn't use the autotitle because the
> first row doesn't actually exist in the data file):
> gnuplot> set datafile separator "," 
> gnuplot> set grid x y z
> gnuplot> set hidden3d
> gnuplot> splot for [sec=1:600] 1:(sec):(column(sec+1)) 'wf.csv' with impulse
> lc palette 
> Warning: empty z range [1:1], adjusting to [0.99:1.01]
> 
> 
> gnuplot> splot for [sec=1:600] 1:(sec):(column(sec+1)) 'wf.csv' with impulse
> lc palette 
>                                 ^
>          ';' expected

Sorry, sorry. I don't know what I was thinking of.
Here it is again, tested on some actual data this time:

  splot for [sec=1:600] 'wf.csv' using 1:(sec):(column(sec+1)) with impulse lc palette

	Ethan

-- 
Tradition is not the worship of ashes, but the preservation of fire.
  - Gustav Mahler

Re: [Gnuplot-info] Waterfall / Cascade Plot

[howudodat <pe...@ho...>]

I have used the following commands ( I didn't use the autotitle because the
first row doesn't actually exist in the data file):
gnuplot> set datafile separator "," 
gnuplot> set grid x y z
gnuplot> set hidden3d
gnuplot> splot for [sec=1:600] 1:(sec):(column(sec+1)) 'wf.csv' with impulse
lc palette 
Warning: empty z range [1:1], adjusting to [0.99:1.01]


gnuplot> splot for [sec=1:600] 1:(sec):(column(sec+1)) 'wf.csv' with impulse
lc palette 
                                ^
         ';' expected

gnuplot> 

and the resulting image is:
<http://gnuplot.10905.n7.nabble.com/file/n17271/chart1.png> 



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Re: [Gnuplot-info] Waterfall / Cascade Plot

[Ethan A M. <EAM...@gm...>]

On Thursday, 11 April 2013, howudodat wrote:
> I am trying to make a waterfall / cascade plot of csv data.  The data is 
> 8192 rows of data x 600 columns of time. The first column is a frequency
> label, the first row is shown below but doesn't actually exist in the data
> file, neither do the spaces, they are shown just for ease of reading.
> 
> Frequency, Sec1, Sec2, Sec3...Sec600
> 1e8, -95,  -90,  -92
> 1.1e8, -100, -101, -103
> ...
> 
> The data represents 600 seconds of fft data.  I would like the plot to look
> something like the attached image.  The x axis should be the columns of data
> (time), the y axis should be each row (frequency).  The z axis is intensity
> and I'm hoping can be displayed both in height as well as color.

General solution (no matrix treatment):

set datafile separator ","
set autotitle columnheader  # read a row of titles
unset key                                # but don't use it for anything
set grid x y z
set hidden3d
splot for [sec=1:600] 1:(sec):(column(sec+1)) with impulse lc palette

You may want to adjust the linewidth of the impulses,
the palette coloring scheme, etc.

There's probably a way to read it as a matrix also,
but I'm less sure of the syntax off the top of my head.



	Ethan


> I can control the input data if needed to remove the first column, but then
> I would need to be able to specify the start/ stop range of the labels
> 
> <http://gnuplot.10905.n7.nabble.com/file/n17268/test.png> 
> 
> 
> 
> --
> View this message in context: http://gnuplot.10905.n7.nabble.com/Waterfall-Cascade-Plot-tp17268.html
> Sent from the Gnuplot - User mailing list archive at Nabble.com.
> 
> ------------------------------------------------------------------------------
> Precog is a next-generation analytics platform capable of advanced
> analytics on semi-structured data. The platform includes APIs for building
> apps and a phenomenal toolset for data science. Developers can use
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Tradition is not the worship of ashes, but the preservation of fire.
  - Gustav Mahler

Re: [Gnuplot-info] Waterfall / Cascade Plot

[Ethan A M. <EAM...@gm...>]

On Thursday, 11 April 2013, Ethan A Merritt wrote:
> On Thursday, 11 April 2013, howudodat wrote:
> > I am trying to make a waterfall / cascade plot of csv data.  The data is 
> > 8192 rows of data x 600 columns of time. The first column is a frequency
> > label, the first row is shown below but doesn't actually exist in the data
> > file, neither do the spaces, they are shown just for ease of reading.
> > 
> > Frequency, Sec1, Sec2, Sec3...Sec600
> > 1e8, -95,  -90,  -92
> > 1.1e8, -100, -101, -103
> > ...
> > 
> > The data represents 600 seconds of fft data.  I would like the plot to look
> > something like the attached image.  The x axis should be the columns of data
> > (time), the y axis should be each row (frequency).  The z axis is intensity
> > and I'm hoping can be displayed both in height as well as color.
> 
> General solution (no matrix treatment):
> 
> set datafile separator ","
> set autotitle columnheader  # read a row of titles

Oops. Make that
  set key autotitle columnheader

	Ethan


> unset key                                # but don't use it for anything
> set grid x y z
> set hidden3d
> splot for [sec=1:600] 1:(sec):(column(sec+1)) with impulse lc palette
> 
> You may want to adjust the linewidth of the impulses,
> the palette coloring scheme, etc.
> 
> There's probably a way to read it as a matrix also,
> but I'm less sure of the syntax off the top of my head.
> 
> 
> 
> 	Ethan
> 
> 
> > I can control the input data if needed to remove the first column, but then
> > I would need to be able to specify the start/ stop range of the labels
> > 
> > <http://gnuplot.10905.n7.nabble.com/file/n17268/test.png> 
> > 
> > 
> > 
> > --
> > View this message in context: http://gnuplot.10905.n7.nabble.com/Waterfall-Cascade-Plot-tp17268.html
> > Sent from the Gnuplot - User mailing list archive at Nabble.com.
> > 
> > ------------------------------------------------------------------------------
> > Precog is a next-generation analytics platform capable of advanced
> > analytics on semi-structured data. The platform includes APIs for building
> > apps and a phenomenal toolset for data science. Developers can use
> > our toolset for easy data analysis & visualization. Get a free account!
> > http://www2.precog.com/precogplatform/slashdotnewsletter
> > _______________________________________________
> > gnuplot-info mailing list
> > gnu...@li...
> > https://lists.sourceforge.net/lists/listinfo/gnuplot-info
> > 
> 
> 
> 


-- 
Tradition is not the worship of ashes, but the preservation of fire.
  - Gustav Mahler

[Gnuplot-info] Waterfall / Cascade Plot

[howudodat <pe...@ho...>]

I am trying to make a waterfall / cascade plot of csv data.  The data is 
8192 rows of data x 600 columns of time. The first column is a frequency
label, the first row is shown below but doesn't actually exist in the data
file, neither do the spaces, they are shown just for ease of reading.

Frequency, Sec1, Sec2, Sec3...Sec600
1e8, -95,  -90,  -92
1.1e8, -100, -101, -103
...

The data represents 600 seconds of fft data.  I would like the plot to look
something like the attached image.  The x axis should be the columns of data
(time), the y axis should be each row (frequency).  The z axis is intensity
and I'm hoping can be displayed both in height as well as color.

I can control the input data if needed to remove the first column, but then
I would need to be able to specify the start/ stop range of the labels

<http://gnuplot.10905.n7.nabble.com/file/n17268/test.png> 



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