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linux - Installing Gnuplot 5.0 on Ubuntu - Stack Overflow
# For the pdfcairo, pngcairo, epscairo terminals


# wxt
gnuplot  install  ubuntu 
november 2018 by aries1988
One title for multiplot in gnuplot - Stack Overflow
If you want more fine control over the page title, you can always use a label specifying the coordinates as screen. Just add this before the last plot and you're all set. (If you add it before the first plot, the same label may be drawn a few times which is probably not what you want.)
howto  gnuplot  plot  explained 
november 2017 by aries1988
aschn/gnuplot-colorbrewer: ColorBrewer color schemes for gnuplot
An easy way to use the beautiful color schemes at ColorBrewer in the handy command-line plotting program gnuplot.

All ColorBrewer color schemes that include at least 8 colors are included. Each color scheme provides 8 discrete colors and a continuous color palette. See the examples directory for sample code and output.
visualization  gnuplot  color  palette  tool 
november 2017 by aries1988
Gnuplot Vector Probes from the funtionObject - CFD Online Discussion Forums
to plot the Uz component. %lf --> read a double and %*f --> skip number ... So it translates to: read (ignore ignore read)
gnuplot  ofm 
june 2017 by aries1988
gnuplot / label (1E)
You can write the supersript as X^2, and the subscript is Y_3. To make several letters super- / sub-script, you need brace like Z_{64}. To use super and subscripts at the same time, try Z@^2_{64}.
february 2017 by aries1988
gnuplot / plot3d (2E)
gnuplot> set dgrid3d 30,30
gnuplot> set hidden3d
gnuplot> splot "datafile.dat" u 1:2:3 with lines
3d  plot  gnuplot  moi 
december 2016 by aries1988
Attractive plots « Gnuplotting
As you surely have noticed I don’t use the default colors and line styles from Gnuplot, but define them myself. The simple reason is that the default colors are not optimized to be very pleasant, but are simply primary colors. I just stumbled over an blog entry of Brighten Godfrey, which deals with some thoughts on beautiful plots.
gnuplot  color 
august 2015 by aries1988
The set key autotitle columnheader option is available if gnuplot was built with -enable-datastrings. This command causes the first entry in each column of plotted data to be interpreted as a text string and used as a title for the corresponding plot. If the quantity being plotted is a function of data from several columns, gnuplot may be confused as to which column to draw the title from. In this case it is necessary to specify the column explicitly in the plot command, e.g. plot "datafile" using (($2+$3)/$4) title 3 with lines.
gnuplot  legend 
april 2015 by aries1988
科学网—谈谈gnuplot(二十):图像尺寸 - 马欢的博文
由于上述第二点,set size 命令更常用的形式是 set size ratio,这时只需给出绘图区域高和宽的比例,例如:
gnuplot> set size ratio 0.5
gnuplot  explained 
april 2015 by aries1988
gnuplot horizontal key - Stack Overflow
@victolunik -- the null plot trick is a very dirty hack, but it turns out to be one of my go-to gnuplot tricks. Good luck (and happy plotting!). – mgilson Nov 1 '12 at 18:25
gnuplot  trick  legend 
march 2015 by aries1988
Gnuplot example session
With contours you must be careful with the format of the data files. Isolines (say, x-bins) must be separated by a blank line! If there are two blank lines, gnuplot thinks that a new data set follows.
howto  gnuplot 
february 2015 by aries1988
How to overlay two plots in Gnuplot - Linux FAQ
In this Gnuplot example, I show you how to overlay two plots in Gnuplot using multiplot feature. Here I want to overlay a small plot on top of another plot.
september 2014 by aries1988
科学网—谈谈gnuplot(十一):enhanced 文本模式 - 马欢的博文
"f(x) = {/Symbol=16 \326}~{x^@3}{1.1{/Symbol=16 \276}}&{aa}函数图像"
september 2014 by aries1988
key box too large using subscripts in postscript enhanced mode
The <width_increment> is a number of character widths to be added to or
subtracted from the length of the string.
gnuplot  legend 
september 2014 by aries1988
Setting front will draw the rectangle in front of all plot elements, but behind any labels that are also marked front. Setting back will place the rectangle behind all plot curves and labels. Setting behind will place the rectangle behind everything including the axes and back rectangles, and can be used to provide a colored background for the entire graph or page.
august 2014 by aries1988
gnuplot demo script: rectangle.dem
# Illustrate putting a different color under the key box
gnuplot  legend 
august 2014 by aries1988
Gnuplot: An Interactive Plotting Program
Here are briefly some useful hotkeys. Hit 'h' in the interactive interval for help. Hit 'm' to switch mousing on/off. Hit 'g' for grid, 'l' for log and 'e' for replot. Hit 'r' for ruler to measure peak distances (linear scale) or peak ratios (log scale), and '5' for polar coordinates inside a map. Zoom by mouse (MB3), and move in the zoom history by 'p', 'u', 'n'; hit 'a' for autoscale. Use other mouse buttons to put current mouse coordinates to clipboard (double click of MB1), add temporarily or permanently labels to the plot (middle mouse button MB2). Rotate a 3D surface by mouse. Hit spacebar to switch to the gnuplot command window.
gnuplot  howto 
november 2013 by aries1988
Histogram using gnuplot? - Stack Overflow
binwidth=5 bin(x,width)=width*floor(x/width) plot 'datafile' using (bin($1,binwidth)):(1.0) smooth freq with boxes
gnuplot  thesis  howto 
august 2013 by aries1988
Automatic Refresh
!echo "pause 1; replot; reread;" > loop_forever.gnu

load "loop_forever.gnu"
gnuplot  data  learn 
july 2013 by aries1988
plot - Gnuplot Cumulative Column Question - Stack Overflow
plot "<awk '{i=i+$2; print $1,i}' test.txt" with lines
awk  gnuplot  data 
july 2013 by aries1988
Computational Physics, 1B - The Joys of gnuplot
First line - u ($0/48.0):($2) means plot the line number ($0), divided by 48, on the x axis, and plot column 2 ($2) on the y axis. This line would work the same if it said u ($0/48.0):2. (There are 48 half-hours per day.)
gnuplot  learn 
june 2013 by aries1988
Gnuplot 4.2 Tutorial
Function Returns
----------- ------------------------------------------
abs(x) absolute value of x, |x|
acos(x) arc-cosine of x
asin(x) arc-sine of x
atan(x) arc-tangent of x
cos(x) cosine of x, x is in radians.
cosh(x) hyperbolic cosine of x, x is in radians
erf(x) error function of x
exp(x) exponential function of x, base e
inverf(x) inverse error function of x
invnorm(x) inverse normal distribution of x
log(x) log of x, base e
log10(x) log of x, base 10
norm(x) normal Gaussian distribution function
rand(x) pseudo-random number generator
sgn(x) 1 if x > 0, -1 if x < 0, 0 if x=0
sin(x) sine of x, x is in radians
sinh(x) hyperbolic sine of x, x is in radians
sqrt(x) the square root of x
tan(x) tangent of x, x is in radians
tanh(x) hyperbolic tangent of x, x is in radians
Bessel, gamma, ibeta, igamma, and lgamma functions are also
supported. Many functions can take complex arguments.
Binary and unary operators are also supported.
gnuplot  tutorial  reference  function 
april 2013 by aries1988
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