I have the below data file which has:
1st column is the layer number.
2nd column is the X axis.
3rd column is the Y axis.
1 1999-01-19 21 0 1
1 2009-07-01 0 1 1
1 2008-08-20 2 1 1
1 2008-12-18 1 1 1
2 2004-05-12 4 1 1
2 2009-07-29 2 1 1
3 2008-08-07 0 1 1
4 2006-03-08 1 1 1
4 2004-08-31 9 1 1
4 2001-03-27 12 1 1
My questions:
1. How can I plot the above data file in 3D knowing that each layer must have different Z offset and different color?
the below must be plotted with Z=1
1 1999-01-19 21 0 1
1 2009-07-01 0 1 1
1 2008-08-20 2 1 1
1 2008-12-18 1 1 1
and the below with Z=2
2 2004-05-12 4 1 1
2 2009-07-29 2 1 1
and so on.
2.If I want to select the layer number 2, other layers must be shaded with gray and this layer must be colored with red for example, is that possible? so it's like highlighting the selected layer.
thx.
To plot the points just use
set xdata time
set timefmt '%Y-%m-%d'
set format x '%Y'
splot 'data.dat' using 2:3:1
That uses the layer number as z-value. To get something else, just specify a function for the z-value depending on the layer number:
zpos(z) = 1 + 0.5*z
splot 'data.dat' using 2:3:(zpos($1))
For the coloring use linecolor rgb variable. That allows you to specify the color in the last column. This color must be the integer representation of an rgb-tuple which is 65536*red + 256*green + blue, with red, green and blue being in the range [0:255].
The following script plots the points in layer 2 in dark red:
set xdata time
set timefmt '%Y-%m-%d'
set format x '%Y'
rgb(r,g,b) = 65536*r + 256*g + b
gray = rgb(200,200,200)
red = rgb(200,0,0)
layer = 2
set view 66,20
splot 'data.dat' using 2:3:1:($1 == layer ? red : gray) with points pt 7 linecolor rgb variable notitle
The result with 4.6.4 is:
Related
using Gnuplot to plot 3D charts with splot and errors with zerror does not allow us to have different lines with points. Here are examples. I would like to use splot with error bars and still differentiate lines by different points. Like it is mentioned here:
The operation of with is also the same as in plot, except that the
plotting styles available to splot are limited to lines, points,
linespoints, dots, and impulses; the error-bar capabilities of plot
are not available for splot.
Is there another solution for this problem in Gnuplot?
As you note, there doesn't seem to be a direct plotting style for drawing error bars in 3D. It is possible to manipulate the input data to pseudo-draw the error bars with lines style.
Sample Script:
$inputdata <<EOD
# x y z zlow zhigh
1 1 1 0 2
2 1 2 1 3
3 1 3 2 4
4 1 4 3 5
5 1 5 4 6
1 2 5 1 7
2 2 4 1 7
3 2 3 1 7
4 2 2 1 7
5 2 1 1 7
1 3 3 1 4
2 3 3 2 5
3 3 3 3 6
4 3 3 2 5
5 3 3 1 4
EOD
# construct errorbar's line segments data
set table $first
plot $inputdata using 1:2:4:($1-0.1):4:5:0 with table
set table $second
plot $inputdata using 1:2:5:($1+0.1):4:5:0 with table
unset table
# summarize data into data block $errbars
stats $inputdata using 0 nooutput
set print $errbars
do for [i=1:STATS_records] {
print $first[i]
print $second[i]
print ""
print ""
}
set print
set xrange [0:6]
set yrange [0:4]
set key noautotitle
splot $inputdata using 1:2:3:2 with linespoints pt 7 lc variable, \
$errbars using 1:2:3:2 with lines lc variable, \
$errbars using 4:2:5:2 with lines lc variable, \
$errbars using 4:2:6:2 with lines lc variable
pause -1
It uses the line-wise data (x,y,z,zlow,zhigh) of the data points and error range as inputs to build the data to draw the error bars and whiskers. Once that's done, we can draw each part of the error bar in lines style.
Result:
Here's another solution using vector style which is actually much simpler than above script.
Sample script:
$inputdata <<EOD
# x y z zlow zhigh
1 1 1 0 2
2 1 2 1 3
3 1 3 2 4
4 1 4 3 5
5 1 5 4 6
1 2 5 1 7
2 2 4 1 7
3 2 3 1 7
4 2 2 1 7
5 2 1 1 7
1 3 3 1 4
2 3 3 2 5
3 3 3 3 6
4 3 3 2 5
5 3 3 1 4
EOD
set xrange [0:6]
set yrange [0:4]
unset key
set style arrow 3 heads size 0.05,90 lc variable
splot $inputdata using 1:2:3:2 with linespoints pt 7 lc variable, \
$inputdata using 1:2:4:(0):(0):($5-$4):2 with vectors arrowstyle 3
pause -1
Thanks.
I am trying to create one heatmap using Gnuplot and my data file structure is looked like below:
6 5 4 3 1 0
3 2 2 0 0 1
0 0 0 0 1 0
0 0 0 0 2 3
0 0 1 2 4 3
the cell values are z values and columns represent y-axis and row are x-axes. that means the first value 6 is the z value where the y-axis is 5th position at x label zero. However, while plotting the heat map I am getting a different color which does not correlate with the z value. Also, I am getting five bins for the x-axis (which is supposed to be 6)and 4 bins (which is supposed to be 5) for the y-axis. My simple code is written below:
set pm3d map
splot 'm.txt' matrix
Please help me out of this confused situation.
Thanks.
tmp.data
DATE D0 D1 D2 D3 D4 D5
"2017-07-19" 10 8 6 4 2 1
"2017-07-20" 16 14 10 11 10 9
"2017-07-21" 6 5 4 4 3 1
"2017-07-22" 7 5 4 4 3 2
"2017-07-23" 8 6 4 2 1 1
tmp.gnu
set terminal png size
set output 'output.png'
set title "statistics"
set key font ",10"
D0 = "#99ffff"; D1 = "#4671d5"; D2 = "#ff0000"; D3 = "#f36e00"; D4 = "#8A2BE2#'; D5 = "#4671d5"
set auto x
unset xtics
set xtics nomirror rotate by -45 scale 0
set style data histogram
set style histogram rowstacked
set style fill solid border -1
set boxwidth 0.75
plot 'tmp.data' u 2:xtic(1) title columnheader, \
'' u 3:xtic(1) title columnheader, \
'' u 4:xtic(1) title columnheader, \
'' u 5:xtic(1) title columnheader, \
'' u 6:xtic(1) title columnheader, \
'' u 7:xtic(1) title columnheader
Creates the following:
The columns are accumulative.
What I'd like to have is have it proportional, for example in row 2.
10 - 8 = 2,
8 - 6 = 2,
6 - 4 = 2,
4 - 2 = 2,
2 - 1 = 1
If you want to plot the difference between two columns, then you must calculate the difference inside the using statement like
plot "tmp.data" using ($2 - $3):xtic(1)
to plot the difference between third and second column. For all your columns, and keeping the second as is, use (using the inline data $data requires 5.0):
$data <<EOD
DATE D0 D1 D2 D3 D4 D5
"2017-07-19" 10 8 6 4 2 1
"2017-07-20" 16 14 10 11 10 9
"2017-07-21" 6 5 4 4 3 1
"2017-07-22" 7 5 4 4 3 2
"2017-07-23" 8 6 4 2 1 1
EOD
set xtics nomirror rotate by -45 scale 0
set style data histogram
set style histogram rowstacked
set style fill solid border -1
set boxwidth 0.75
set key auto columnheader
plot $data u 2:xtic(1), \
for [i=3:7] '' u (abs(column(i) - column(i-1))):xtic(1)
Here, you must decide if you need the abs or not. The result is:
How can one set different heights for two or more plots in multiplot-mode using set size <x>,<y> respecting correct arrangement for the x-axes of the plots? Following problem: I've got a heatmap plot and another linespoint plot with the same time axis. The heatmap plot contains way more information and should use e.g. 80% of the canvas height. Using
set multiplot layout 2,1 margins .1,.8,.05,.95 spacing .05
sets the plots in perfect arrangement but without the possibility to change heights; or at least I didn't manage to get it right. Here are two examples using code from the gnuplot demopage:
$map2 << EOD
0 0 5
0 1 4
0 2 3
0 3 1
0 4 0
1 0 2
1 1 2
1 2 0
1 3 0
1 4 1
2 0 0
2 1 0
2 2 0
2 3 1
2 4 0
3 0 0
3 1 0
3 2 0
3 3 2
3 4 3
4 0 0
4 1 1
4 2 2
4 3 4
4 4 3
EOD
set multiplot layout 2,1 margins .1,.8,.05,.95 spacing .05
plot '$map2' using 2:1:3 with image
plot sin(x)*cos(x)**2, tan(x)
unset multiplot
which results:
Setting explicit sizes and origins before the plotting commands doesn't have any effect.
Plotting without the margins/spacing option and instead setting explicit sizes and origins for each plot one could only guess the correct x-width for the second plot. Guessing it between .85 and .9 in the code:
$map2 << EOD
0 0 5
0 1 4
0 2 3
0 3 1
0 4 0
1 0 2
1 1 2
1 2 0
1 3 0
1 4 1
2 0 0
2 1 0
2 2 0
2 3 1
2 4 0
3 0 0
3 1 0
3 2 0
3 3 2
3 4 3
4 0 0
4 1 1
4 2 2
4 3 4
4 4 3
EOD
set multiplot layout 2,1
set size 1,.75
set origin 0.025,.25
plot '$map2' using 2:1:3 with image
set size .85,.25 # <---
set origin 0.025,0
plot sin(x)*cos(x)**2, tan(x)
unset multiplot
lets me plot it like that:
I hope I could explain my question and thanks a lot for your help! It is highly appreciated!
If I have understood your question, you have to only change rmargin and lmargin:
set size 1,1
set origin 0,0
unset bmargin, unset lmargin, unset tmargin, unset rmargin
set multiplot
set size 1,0.8
set origin 0,0.2
set lmargin at screen 0.1
set tmargin at screen 0.95
set rmargin at screen 0.9
plot 'map2.dat' using 2:1:3 with image
set size 1,0.2
set origin 0,0
set tmargin 0
set lmargin at screen 0.1
set bmargin at screen 0.1
set rmargin at screen 0.9
plot[GPVAL_X_MIN:GPVAL_X_MAX] sin(x)*cos(x)**2, tan(x)
unset multiplot
I have the below gnuplot script, I'm trying to display the third column when the mouse hover over a point of the plot.
set title "Cloud"
set xlabel "Date"
set ylabel "Number"
filename ='data.dat'
stats filename using 4 nooutput
set xdata time
set timefmt '%Y-%m-%d'
set format x '%Y'
rand_x(x) = x + 60*60*24*7 * (rand(0) - 0.5)
rand_y(y) = y + (rand(0) - 0.5)
set xrange [ "1995-01-19":"2013-12-12" ]
plot for [i=0:int(STATS_max)-1] filename \
using (rand_x(timecolumn(1))):(i < $4 ? rand_y($2) : 1/0):3 pointtype 7 linecolor palette notitle
u 0:1:2 with labels hypertext point pt 7 ps var lc rgb "#ffee99"
And the data file looks like below:
1999-01-19 21 0 1
2009-07-01 0 1 1
2008-08-20 2 1 1
2008-12-18 1 1 1
2004-05-12 4 1 1
2009-07-29 2 1 1
2008-08-07 0 1 1
2006-03-08 1 1 1
2004-08-31 9 1 1
2001-03-27 12 1 1
2009-08-19 0 1 1
2010-07-14 2 1 1
2009-06-24 0 1 1
2009-11-11 0 1 1
2010-10-13 0 1 1
2012-02-22 0 1 1
2011-05-11 0 1 1
2011-03-03 0 1 1
2011-09-21 0 1 1
2011-12-20 0 1 1
2011-10-05 0 1 1
2012-05-03 0 1 1
2011-10-05 0 2 1
2013-01-09 0 2 1
2011-06-03 0 2 1
So can you please tell me what's wrong with my script?
Thanks.
First a remark for the readers: hypertext works only with the 4.7 development version.
To your problem: For plotting the labels, you must also use the same x and y columns 1 and 2 (you use 0 and 1). And you need the third column for the labels and a fourth one for the ps var. So your plot part for the labels is:
plot for [i=0:int(STATS_max)-1] filename \
using (rand_x(timecolumn(1))):(i < $4 ? rand_y($2) : 1/0):3 pointtype 7 linecolor palette notitle,\
'' u 1:2:3:3 with labels hypertext point pt 7 ps var lc rgb "#ffee99"