gnuplot development

I need natural numbers (without fractional numbers) on y-axis and discrete
dates (without hours and minutes) at x-axis. How?

I also need to revert Y axis to show greater values below smaller. How?
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Hello all,

I'm new to gnuplot and am hoping to get some advice on how to
accomplish the goal I'm trying to get to and/or improvements to what I
have so far.

I'm trying to make a chart that shows windows of a given time duration
and specific events,  that occurred at a given time. The events are
grouped by type and source. The specific example is trying to show
which sensors in my house (motion, temperature, lights) are triggered
over a given time. I'd like to be able to show a window that indicates
the time a room is occupied and then samples from temperature in that
room. There may be multiple windows for the same run that I want to
have on the same line.

So far, here is what I have:
reset

#use for saving image
#set terminal png
#set output 'plot.png'

set title "Test plot"

#data file with measurements
DATAFILE='testdata'

#clean up the borders
set border 1
set xtics nomirror
set ytics nomirror
#unset ytics

#create map to have all the events of a given type have same style
stylemap(string) = (string eq 'TEMPMEASUREMENT' ? 1: \
                   string eq 'MOTION' ? 2 : \
                   1/0)

#map of each potential source of an event
sourcemap(index) = ( index == 1 ? 'ROOM1_TEMPSENSOR' : \
                   index == 2 ? 'ROOM1_MOTIONSENSOR' : \
                   index == 3 ? 'ROOM2' : \
                   1/0)
#test room occupied window data
ENTERTIME=0
EXITTIME=100
ENTERTIME_1=120
EXITTIME_1=150

#window
#TODO: yticlabel
#TODO: dynamic creation from datafile
set object 1 rect from ENTERTIME,0 to EXITTIME,0.1 fc rgb 'black'
set object 2 rect from ENTERTIME_1,0 to EXITTIME_1,0.1 fc rgb 'black'

set xrange[ENTERTIME-10:EXITTIME+10]
#TODO: set max to total index used
set yrange[-1:10]
set autoscale ymax

#add some style
set style line stylemap('TEMPMEASUREMENT') lt rgb "green" lw 3 pt 50
set style line stylemap('MOTION') lt rgb "blue" lw 3 pt 6 ps 2

#plot data.
plot DATAFILE using 3:1:ytic(sourcemap($1)) index 0 with points
notitle ls stylemap('TEMPMEASUREMENT'), \
     DATAFILE using 3:1:ytic(sourcemap($1)) index 1 with points
notitle ls stylemap('MOTION'), \
     DATAFILE using 3:1:ytic(sourcemap($1)) index 2 with points
notitle ls stylemap('TEMPMEASUREMENT')

###data file sample
#WHO WHAT WHEN
1 TEMPMEASUREMENT 10 1
1 TEMPMEASUREMENT 20 1
1 TEMPMEASUREMENT 30 1
1 TEMPMEASUREMENT 40 1
1 TEMPMEASUREMENT 50 1


2 MOTION 15
2 MOTION 25
2 MOTION 35
2 MOTION 45
2 MOTION 55


3 TEMPMEASUREMENT 13
3 TEMPMEASUREMENT 23
3 TEMPMEASUREMENT 33
3 TEMPMEASUREMENT 43
3 TEMPMEASUREMENT 53
3 TEMPMEASUREMENT 63


The questions I have:
1) Is there a better way to do the time windows other then using
objects? I really want to have all the data in data file. Is there a
way to have the object pull the enter/exit time from the data file? I
want to also add a label at the the ylabel for the windows. A yticmark
if you will. How can I add one that isn't tied to a data point (more
reason to want to pull windows from datafile. Just have some that y=0
that is labeled ROOM_OCCUPIED:      __________            ________
_____   _____    ___________
2) From what I have read online, I can't use a string for the y value.
That is why I have the mapping functions to take the index (column
one) and translate it to the name for the ytic. Is there a way to do
this will out the map?
3) I want to get the "magic text" out of the plot call? I have tried
everything but I can't seem to find a way to pass the string from the
datafile into the stylemap call. I have tried
stylemap($2),stylemap(stringcolumn(2)), and a few others. All fail.

I know I can probably just take the strings out of the datafile and
then just have two maps: source_index->source_name and
style_index->name (for key). But I wanted to ask if there might be an
easily or other way to do this. I'd love to not have those maps
(source map mainly since I want it to be dynamic from datafile/ styles
will not change that much) and be able to have all the strings in the
datafile itself. That will let the data files be more human readable
and have all the information to allow for a generic gnuplot script to
generate ( use iterator to through all the datafiles instead of
indexes within a single file).

Any suggestions or comments would be great. I'm sure I have done
things wrong/overly complex since I'm still new to gnuplot. Any coarse
corrections would be great before I get in too much of a rabbit hole.

Thanks.

Hi
 
I am trying to plot stacked 2-d files which vary in a 3rd dimension.  i.e. I have multiple xy files.  Something like the following link.

http://www.mathworks.com/matlabcentral/fx_files/24368/4/style1.jpg

Plotting a colour map works fine (once I get all the files into one file) with splot, but whenever I use splot with lines, it joins up along the y axis too.
 
My script is:

reset
set termoption dash
set term postscript color enhanced eps "Helvetica" 16
set output "stack_01.eps"
set size 1,1
set border 4095 front linetype -1 linewidth 1.000
unset key
unset contour
set xlabel "2{/Symbol-Oblique q} / {/Symbol \260}"
set ylabel "Scan number"
set ytics mirror
set zlabel "Relative intensity / s^{-1}" rotate by 90
set xrange [ * : 70 ]
set yrange [ 1 : 95]
set zrange [ * : *] 

set view 60,15
splot "combined.txt" using 2:1:($3/925.1) every :8::1::95 with lines
#splot "combined.txt" using 2:1:($3/925.1) every :8::1::95 with points

Can anyone suggest a good way to plot stacked plots, not joining up on the y axis?




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Dear All,

I am trying to achieve the effect putting the key on some white background
although there is originally some plots there. How can I possibly do that?
I tried to define a region and then clear it within mutliplot, but that
area is always overwritten by the following plots, and thus cannot be
whiten out.

Thanks,

Sincerely,
Jon

I am running a bash script that produces a series of plots using gnuplot.
Next to each plot I want to write some information about the plot (average
etc), and I achieve this using labels. I have the following settings (among
others):

<code>
#!/bin/bash

for some input in {blah };do

gnuplot << EOF

set term pngcairo size 800,600
set output '$input.png'
set size 0.8,1

set label 1 at graph 1.2, graph 0.2 
set label 1 "Average $average"
...
set more labels
...

splot .....

EOF
done
</code>
This works fine most of the times, but randomly in some plots the labels are
mispositioned (examples attached - first one is ok, second one is
misplaced). Any idea why this might happen? And better yet, how to fix it?
Thanks!!
http://old.nabble.com/file/p34568733/DF_01_basecase_East_1.png 
http://old.nabble.com/file/p34568733/DF_05_twolouvers_East_3.png 


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I'm not sure how to update to version 4.6 I'm using Ubuntu 12.04 64 bit

Hello,

I am trying to plot two graphs on the same plot.

The first is a simple x-y points plot:

plot myfile u 1:2

The second is a contour plot at level 0, which I can plot with the
following commands:

set contour
unset surface
set map view
set cntrparam levels discrete 0
splot a*y**3 + b(x)*y**2 + c(x)*y + d(x)

b(x), c(x) and d(x) are known polynomial functions on x.

Both use the same xrange and yrange.

How can I plot them both in the same graph?

Thank you,
Martin

Hello,

Maybe someone can help me with the following issue:

I'm trying to plot a complex quantity z which depends on two variables x and
y in form of a pm3d-plot,
where the phase phi(z) of the complex values is aimed to be encoded a color
from the hue-scale,
while the amplitude A(z) of the complex values determines the intensity of
that color.

The data are read from a file with specification of

x y phi(z) A(z)

in each column, where x changes slow and y changes fast.

The most obvious solution (at least from my point of view) to choose the
option

u 1:2:3:4

in combination with "splot" after definition of the color scheme via

set palette model HSV functions gray,1,1

did not yield the desired result. Then just the phase is plotted regardless
of the amplitude.

If you have an idea how to proceed, please let me know.

Best regards,

Joachim
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Hello,

I'm trying to plot three spheres using set parametric.

At the moment, I have this small script:

#####
set parametric; set angle degree
fx(u,v)=0.4*cos(u)*cos(v)+0.34
fy(u,v)=0.4*sin(u)*cos(v)+0.366
fz(v)=0.4*sin(v)

gx(u,v)=0.7*cos(u)*cos(v)
gy(u,v)=0.7*sin(u)*cos(v)
gz(v)=0.7*sin(v)

hx(u,v)=0.5*cos(u)*cos(v)
hy(u,v)=0.5*sin(u)*cos(v)
hz(v)=0.5*sin(v)

splot fx(u,v),fy(u,v),fz(v),\
gx(u,v),gy(u,v),gz(v),\
hx(u,v),hy(u,v),hz(v)
######

Is there any way of independently changing the ranges of the dummy
variables for each sphere?

Thanks,

Clement Law

"help set terminal fig"
tell you:

Syntax:
       set terminal fig {monochrome | color}
...
                        {solid | dashed}
...

you need to give the appropriate options to get colored
and dashed lines:

set terminal fig color dashed size 5,5


gnuplotUser wrote:
> 
> Hello,
> 
> I am exporting a plot using fig terminal under multiplot mode. But the
> exported image has only black lines. It works well if I don't use fig
> terminal, but I *do* need to use colored and dashed lines to be exported
> (for further editing on them). Below is snippet from my code.
> 
> set term fig size 5 5
> set multiplot
> plot a.dat using 2:1 with lines lc rgb"red";
> set nomultiplot
> unset multiplot
> 
> I'm using 4.4 version of gnuplot under Ubuntu Linux.
>> gnuplot --version
> gnuplot 4.4 patchlevel 3
> 
> 

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Hi, I am seeing an issue the cairolatex terminal. After the first object
circle is placed on the canvas, the fillcolor is ignored and set to the
default (black). This does not happen for the pdfcairo terminal.


Here is a script to demonstrate:

set macros
set terminal push
set terminal cairolatex pdf color
set style fill solid 1.0
set xrange [0:5]; set yrange [0:5]
plotcmd="plot 1/0; set terminal pop; set terminal push; replot;"

c=0;
circle(x,y)=sprintf("c=c+1; set object c circle at %g,%g size 0.1
fillstyle fillcolor rgbcolor 'red';",x,y);
eval circle(1,1);
eval circle(1,2);
eval circle(1,3);
# cl.pdf will have one red and 2 black circles
set output 'cl.ltx'
@plotcmd

set terminal pdfcairo color

c=0;
eval circle(1,1);
eval circle(1,2);
eval circle(1,3);
# clf.pdf has all three red circles
set output 'clf.pdf'
@plotcmd




-- 
Leo Butler                 l_butler@...
SDF Public Access UNIX System -   http://sdf.lonestar.org