Questions tagged [plot]

{plot} is for questions concerned with plotting data or functions using TeX. For questions specific to the pgfplots package, use the {pgfplots} tag.

166 questions
40k views

Create xkcd style diagram in TeX

The unique style of the diagrams at xkcd has an informative but nice hand-drawn touch. I guess they are actually drawn by hand but just recently on our partner site for Mathematica someone asked how ...
22k views

Bell Curve/Gaussian Function/Normal Distribution in TikZ/PGF

Can anyone tell me how to plot a gaussian function/bell curve using TikZ/PGF? I'm basically looking to implement something like PSTricks's \psGauss command.
5k views

Center nodes near coords in a stacked ybar plot

I'm trying to center the node values, at the middle of each bar, in a stacked plot. However I can only put those nodes in the top of each bar. Is it possible to move those down? To the center of each ...
16k views

Fill the area between two curves calculated by pgfplots

This is essentially the same question as fill the area between two curves when their coordinates are known. In that question, the curves were defined by known coordinates. I want to fill the area ...
10k views

Is plotting exponential graphs a known source of bugs in TikZ?

I want to plot $y = 2^x$ over a small domain. Unfortunately, even though tikz (v 2.1) seems to be able to calculate 2^{negative numbers} it is not plotting them correctly. My minimal example is: \...
60k views

How to plot data from a CSV file using tikz and csvsimple?

Here is a minimal example : \begin{filecontents*}{data.csv} a,b,c,d 1,4,5,1 2,3,1,5 3,5,6,1 4,1,4,9 5,3,4,7 \end{filecontents*} \documentclass{article} \usepackage[utf8]{inputenc} \usepackage{...
7k views

Fill between two curves in pgfplots.

How to accomplish fill between two curves in pgfplots? For example, I have ... \addplot coordinates {(0,1) (1,1)}; \addplot file {something.dat}; ... and I would like to have filling between those ...
4k views

Plotting an implicit function using pgfplots

What is the correct way to plot an implicit function using pgfplots? Consider the following example: \documentclass{standalone} \usepackage{pgfplots} \pgfplotsset{compat=newest} \begin{document} \...
2k views

What are the benefits of PGFPlots/TikZ compared to importing PDF?

What are the benefits of using tools like pgfplots or tikz directly in LaTeX compared to importing PDF/PGF generated by say matplotlib? This answer believed that the main reason is to match the plots ...
2k views

Plotting the Cantor function

I would like to know if there is an (easy?) way of plotting the Cantor function (devil's staircase) using LaTeX. Doing it manually with TikZ seems like madness somehow and my knowledge of plotting ...
2k views

Pgfplots: plot graph inside table

I would like to plot a table with a graph inside it. I am trying to use this example as a guide. This is the current hand-constructed version. UPDATE: I don't have enough reputation to answer my own ...
14k views

How to plot x^(1/3)?

I tried to export my Geogebra graphs into tikz-code. In General it works fine, but plot x^1/3 doesn't work: \documentclass[10pt]{article} \usepackage{pgf,tikz} \usetikzlibrary{arrows} \pagestyle{...
5k views

Create heatmap with PSTricks or TikZ

I have a huge amount of 2D-coordinates, associated with a value, e.g.: x | y | value 27.50 52.15 12.51 61.83 13.32 57.56 36.23 21.83 41.73 40.46 85.67 25.20 ... The data is ...
3k views

Plot functions and their point of intersection

We are plotting three functions as follows \documentclass{article} \usepackage{pgfplots} \begin{document} \begin{tikzpicture} \begin{axis}[enlargelimits=false] \addplot[domain=0:1,blue] {(1-x)/5}; \...
11k views

TikZ: Replacing the values (labels) on x-axis with names

I managed to create a simple linear plot with pgfplots-manual (chapter 4.5.1) Now I want to replace the values of x-axis (1,2,3,4) with text, e.g.Test A, Test B, Test C, Test D. How can I do such a ...
270 views

Strange behavior of abs(x) in PGF Plots

I have the following code: \begin{tikzpicture} \begin{axis} [ axis lines = {center}, width = {0.6\linewidth}, ylabel = {$y$}, xlabel = {$x$}, ytick ...
424 views

Plotting a recursive defined set of functions with conditional base function

I'm trying to visualize the construction of B-Spline functions by showing step by step how the curve is created. This involves painting curves similar to these: The function that creates the curve, ...
68k views

draw a plot with point

I try to draw something like this: To do that, I have written some code using TikZ, unfortunately I don't get what I want. \documentclass{report} \usepackage{tikz} \usetikzlibrary{automata,topaths}...
2k views

Drawing timeline

I have a dataset which consists of repeating events over time. Each event takes an arbitrary amount of time. I could plot this using gnuplot but am unable to produce correct keys because of the ...
734 views

Advices on drawing a complex figure using tikz

I'm working on wedding invitations and there's a logo that identifies the braid and the broom. Originally this was taken from the internet in a low resolution and quality that ruins up the overall ...
2k views

plotting the sequence x_n using tikz

I want to plot the sequence x_1 = \sin(pi root(2)) x_2 = \sin(pi root(6)) x_3 = \sin(pi root(12)) In short my x_n = sin( pi root(n^2 + n)). I want to plot this as an animation as n goes to infinity....
566 views

How to draw general functions and tangent lines

I wanted to draw following graphs of two general functions of Geometric interpretation of the Euler method. Thanks in advance
660 views

proper tool for charts in tex

I have scanned data graphics in a large ms written in TeX (of course). For copyright reasons I need to redraw these. My publisher may (sadly) decide not to use my source directly, so will need access ...
3k views

Plot reciprocal function with tkiz

I need to plot f(x) = 1 / x in LaTeX and am trying to with Tikz. I haven't found a way to set the vertical range, so the values go out of bound around x=0. Using gnuplot directly doesn't seem to be ...
2k views

How to have linked axes on plots?

I plot infrared spectra in many reports and I display the energy units in two ways, wavenumbers $cm^{-1}$ on the bottom x-axis and wavelength (nm) on the upper x-axis. The relationship is X(nm)=...
461 views

How to create a Ricker Wavelet in TikZ

Is there an easy way to create this wavelet in TikZ. Following the formula I have which is (1-2pi(x)^2)(e^-pi(x)^2) but when trying to create this I arrived at the issue that the function I have ...
1k views

Plot bessel functions

Is there any way of producing first and second kind bessel functions? What about modified bessel functions? I want to have J_{\nu} (x) , Y_{\nu} (x), I_{\nu} (x) and K_{\nu} (x) in a separate ...
2k views

Plot an elliptic curve in Latex

I am trying to plot the elliptic curve secp256k1 y^2=x^3+7 in my latex-document. \begin{center} \begin{tikzpicture}[domain=-4:4, samples at ={-1.769292354238631, -1.76, -1.74, ..., 2.26, 2.35, 2.7, 2....
8k views

inset plot with pgfplots

I am using pgfplots to plot some data I have, and I wanted to generate a large plot with another plot inside of it, showing a zoom on a region of the large plot. I have noticed that when you do \...
6k views

Animated plotting with LaTex?

I am not a LaTeX pro, that's why I don't know if the following is possible and how I could do it. I have a graphic (a plot, jpg) and it shows a time series. I know in PowerPoint it is possible that ...
2k views

Plotting a graph with several values of a parameter

I'm trying to plot the function q(t) = (4.9/ (w^2))*(cosh(w*t)-cos(w*t)) for several values of the parameter w. That is, I want to plot whole graphs of q vs t, where I plug in say w=1, w=2, w=100, or ...
3k views

How to draw 3d vector field on a line?

How to draw 3d vector field on a line? I want to visualize the vector field $( m_x(x), m_y(x), m_z(x) )$. After searching "visualize vector field", I find that most plotting software either plotting ...
9k views

Plot non-continuous function with TikZ

How can I plot a non-continuous function with TikZ (using continuous lines for continous stretches of the function and dashed lines for discontinuities)? Does anybody know an efficient method?
3k views

Plotting a piecewise function

I'm trying to learn to plot in latex, but I'm having a problem trying to find out which packages that are best to use in this situation, and I find it a bit of a learning curve. Suppose you have the ...
893 views

Plotting piecewise function using declare function

I am trying to plot a piecewise defined function, but somehow I don't manage to get it right. See below. I use the following code \begin{tikzpicture}[ declare function={ func(\x)=(\x >8/10) * (6/...
731 views

How to plot a complicated multi-variable function in a tex document automatically, not just importing an image

I have the following Tex functions and I want to plot them in my tex thesis, but I don't know how. I mean, I want the Tex to draw the function, not just to include an external image to it. y[\text{x\$\...
12k views

How can I import and scale matplotlib plots, keeping fonts the correct size?

I'm working on several pieces of coursework involving lots of plots generated with matplotlib in python scripts. Currently I'm doing this with an iterative process where I set a plot size in the ...
91k views

How do I stack two figures on top of each other, rather than side to side?

I'd like my figures to be one on top of the other, rather than next to each other, so that they are larger and spread along the page width. How do I do this? Here is my code: \begin{figure}[H] \...
44k views

How to plot f(x)=sin(x), k(x)=cos(x) and u(x)=x² with TikZ

How can we plot the following three functions f(x) = sin(x) k(x) = cos(x) u(x) = x² for x ∈ [0,1] on a single plot with the help of TikZ?
1k views

Curve synthesis - Adding two curves to get another one

Case 1: Let's say I have a few coordinates (A), (B), (C), (W), (X), (Y), and (Z) (possibily obtained through intersection, rotation, and whatnots). I draw two piecewise linear curves through (A), (B)...
2k views

Plotting Weierstrass function

I'm trying to plot Weierstrass function using only basic TikZ picture functionality (no gnuplot or whatnot). How do I use sum in a \draw? Do I have to make a new command? Use a loop? An alternative (...
11k views

Weird result plotting sin(x) using tikz/pgf [duplicate]

Trying to plot the sin(x) function, I get this result: The MWE is here: \documentclass{standalone} \usepackage{ pgfplots} \begin{document} \begin{tikzpicture} \begin{axis} \addplot[samples=500]{sin(...
4k views

What is the easiest way to plot a function and its tangent lines at the turning points?

I want to plot graphs like this and embed them as Tikz or Pstricks code in my handouts. I know that there are software such as Ipe, LaTeXDraw etc. But none of them can satisfy me. Because Ipe doesn't ...
729 views

Plot complete Fermi-Dirac integral in Lualatex

I am trying to plot this function with lualatex
11k views

Multiple subfigures not appearing on the same line

Multiple figures under a single caption. I have tried a code to put two images in a together under a same caption. The subfigures do not appear on the same line. The code is : \documentclass{...
918 views

TikZ doesn't find all intersections between plot and a line

Why doesn't TikZ find all intersections. They are obviously there … \documentclass[border=10mm]{standalone} \usepackage{tikz} \usetikzlibrary{intersections} \begin{document} \begin{tikzpicture}[...
1k views

Plot basic complex transformation in LaTeX

I want to first draw a shaded region on a xy-plane: 0≤x 0≤y≤π and then the image of the above region mapped onto a uv-plane by the transformation f=exp(z), i.e. the shaded region: exp(0)≤ρ ...
4k views

Plot a matrix of real values with TikZ/PGF like imshow in matlab

How can I plot a matrix of real values with TikZ/PGF such that it looks like plotted with imshow in MATLAB? \addplot3 does something similar, but I'd like to have that in a color-coded 2D plot.