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

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8
votes
1answer
501 views

Tikz / pgfplot: plot Alternating Sequence

Is there any possibility to plot an alternating sequence? Picture: Alternating sequence: I don't need exacly the same output as above. I tried the following: \begin{tikzpicture} \begin{axis}[ ...
8
votes
1answer
185 views

pgfplots: wrong domain, wrong axis, uncentered graph… is it a bug?

Question I get a very strange graph with pgfplots, see the picture below. What is going wrong? Code and picture \documentclass{article} \usepackage{pgfplots} \begin{document} \begin{tikzpicture} ...
8
votes
1answer
378 views

how to draw plots without data in tikz?

I want to draw this plot. I know how to do it with data. But here I don't have any data. And I want to draw this. How would I do it?
8
votes
1answer
296 views

Tikz plots distorted mark

Consider the following code: \documentclass{minimal} \usepackage{tikz} \usetikzlibrary{plotmarks} \begin{document} \tikz{\draw (0,0) -- plot[mark=o] (0.5,0) -- (1,0);} \end{document} It seems ...
8
votes
1answer
2k views

How can I display tick marks on only one axis of a pgfplots graph?

How can I display tick marks on only one axis of a pgfplots graph? Here is some simple code to work with: \documentclass{article} \usepackage{tikz} \usepackage{pgfplots} \begin{document} ...
8
votes
1answer
443 views

Huge table/matrix with colored boxes

I have a huge CSV file with about 25.5k records that (structurally) looks like the sample below. In essence, I want to display the values of the columns U,V,W,X,Y,Z of each row as a colored box. The ...
8
votes
1answer
2k views

Problem with a TikZ/Geogebra plot of an exponential function (even if using CVS version definition)

I wanted to graph the function f(x)=(-1+4x^2)*e^2 in a coordinate system. Using "Export Graphics View as pgf/TikZ" in Geogebra I got the following code (here shown after I did some minor changes ...
8
votes
1answer
2k views

How to generate stem plots with TikZ like stem() in Matlab?

Given a set of (x,y) coordinates stored in a file, how could I generate a stem plot from those coordinates? I would like to achieve something similar as the matlab's stem function: ...
8
votes
1answer
1k views

How to project a function over a 3D plane

When I looked up the method to express two variable functions as a sequence of intersecting horizontal planes, I thought to use PGFplots to construct a simple set of "slices" of a generic function ...
8
votes
1answer
2k views

error bar colors in scatter plot

A data file contains four columns: x, y, error on y, class. class is an integer which I feed to scatter src so i get a graph that has different colors for different classes. However, the error bars ...
8
votes
1answer
1k views

Pgfplots contour gnuplot crazy labels

This is driving me mad. I am tryng to create some contour plots, but I get them full of labels, so that they are unreadable! I can't even see the lines or read the values because they are too much. I ...
8
votes
1answer
136 views

Plotting several 2d curves (with different colors) in a 3d graph

I'm trying to reproduce 3D plots with several 2d curves, like in Plotting several 2D functions in a 3D graph. The end result looks like this: The questions are: I would like to change X labels ...
8
votes
3answers
659 views

How to speed up a large plot?

I have a large plot. It is a big file and it renders slowly. What is the best method to slim it down without loosing to much of its visual properties ? I know that PDF and PS support cubic splines. ...
8
votes
1answer
356 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 ...
8
votes
0answers
146 views

Is there a better way to display this information? [closed]

I have drawn this picture in tikz. Is there a more visually pleasing and intuitively appealing way of displaying this information? I feel what I have drawn is dull and boring. I have to include more ...
7
votes
5answers
617 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 ...
7
votes
3answers
3k 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} ...
7
votes
4answers
346 views

tikz/pgfplot — always same distance between marks

Is there a way to get for all tikz-plots in one LaTeX document the same distance between the plot marks, ie the distance between the marks should be independent of sample size. It would be really ...
7
votes
2answers
220 views

Why does a plot of a reciprocal function using pgfplots look wrong?

I am trying to plot the function 1/x^2 but the result is obviously wrong, here is how it looks like here is the code \begin{center} \begin{tikzpicture} \begin{axis}[ %xlabel=$x$, ...
7
votes
2answers
3k views

Easy creation of logarithmic grid with TikZ

Is it possible to create a logarithmic grid using the command below with TikZ? \draw (-0.1,-0.1) grid (4.1,4.1); It would be great to be able to create a logarithmic grid without having to specify ...
7
votes
3answers
372 views

Which plotting tool is more likely to stay stable in the basics: MetaPost, PStricks or pgfplots?

I have been looking at the three (major ?) tools---MetaPost, PStricks or pgfplots for plotting data together with LaTeX. My experience is this: MetaPost code can demand lots of lines for simple ...
7
votes
3answers
301 views

Why must the independent variable of a function to be plotted be a macro in TikZ?

Consider the following code (taken from Jake's answer) and focus on the variable of the function to be plotted. \documentclass[border=5pt,tikz]{standalone} \begin{document} \begin{tikzpicture} ...
7
votes
3answers
462 views

How can I plot the F distribution

I wish to plot the F distribution by declaring its density function. However with the following code I get an error saying that fdst has not been declared: \documentclass[border=5mm]{standalone} ...
7
votes
2answers
453 views

Comparison of pgf plotting packages

I know three ways to do function plots based on the TikZ/pgf package: TikZ/pgf directly pgfplots tkz-fct Which of those options is the most powerful? Why? Can you give typical cases where one ...
7
votes
5answers
2k views

Tangents to a circle from a point outside of it (tikz)

I'm trying to plot in TikZ the two tangents to a fixed circle passing through a given point. In some details, given an arbitrary circle centered at C with with radius r, and a point P outside of the ...
7
votes
2answers
237 views

Plotting 3-dimensional Sets

I am using MikTex and Texworks with pgfplots to try and plot 3 and 2-dimensional sets Could some of you nice fellas help me out? I am trying to plot: I can print out the page and draw per hand ...
7
votes
2answers
640 views

How to plot a discontinuous function curve and diagram of Markov chain with TikZ?

Please apologize my ingnorance of tips to use for asking questions. I would like to realise the plots and the diagram like those shown on page 158, 160 and 161 on this document Chaine de ...
7
votes
3answers
516 views

Calculate function with integers as input and plotting

I'd like to plot the function 1/2*x(x+1) in for integer values ranging from 3 to 20 and in particular I'd like the function to be plotted in those points. I have managed to create the following graph ...
7
votes
2answers
388 views

How to draw this particular Mexican hat potential?

I know there are some other mexican hat questions here, but none of the answers seems complete to me. I would like to draw the following figure with TikZ with similar axis and labeling. How can one do ...
7
votes
3answers
897 views

tikz plot of two sine waves, showing the phase difference

What I am trying to achieve here is to plot two sine waves, and with some dotted lines on the peaks showing a \Delta t in the middle, as the phase difference. Any help appreciated.
7
votes
1answer
3k 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 ...
7
votes
1answer
865 views

Graph showing functions over the same x and y ranges

I want to draw functions and have used this code. But I don't like to give every function a separate domain, I want to say this function has ymax=4 and ymin=-3. Who can help me? ...
7
votes
1answer
432 views

How to draw dash-dotted curves using MetaPost?

Is it possible to (easily) draw dash-dotted curves in MetaPost, i.e. curves that alternate between a dash and a dot? For either dashed or dotted curves, I use the draw command and end it with dashed ...
7
votes
1answer
2k views

Draw outside axis with pgfplots

I have the following diagram, and would like to extend the red line so it crosses the axes and goes on for a bit at the start and the end like in the second picture, but I would like the red and blue ...
7
votes
1answer
682 views

How can I place numbers into marks of a plot?

I have the following plot with this latex-source: \documentclass{minimal} \usepackage{tikz} \usetikzlibrary{plotmarks} %%%< \usepackage{verbatim} \usepackage[active,tightpage]{preview} ...
7
votes
1answer
453 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} ...
7
votes
1answer
790 views

tikz: plot stepped gauss

I need to plot a stepped gauss curve as shown below. Yet I want to do this dynamically (in text) so I can alter it later. I know how to plot a smooth gauss but I really need the stepped one. Also a ...
7
votes
2answers
416 views

Nodes near coord overlapping…how to shift up

I am using nodes near coords but as you can see the values on the bottom are overlapping. I have tried placing them manually but that hasn't worked either...How to just shift up the nodes so they do ...
7
votes
1answer
460 views

Color and legend for 3d surface

I'm trying to plot a 3d surface using pgfplots and this is what I have done so far: \usepgfplotslibrary{patchplots} \begin{tikzpicture} \begin{axis}[% width=12cm,height=12cm, xlabel={$J_1$}, ...
7
votes
1answer
328 views

Tikz: Correct arrows at the end of parametric curves?

\documentclass[11pt]{amsart} \usepackage{tikz} \begin{document} \begin{tikzpicture} [scale=4] \draw[domain=0:0.4, smooth, variable=\t, samples=200, ->] plot({(1/sqrt(2)*(\t-\t^3)}, ...
7
votes
1answer
813 views

Create a Shmoo plot with pgfplots/tikz

I'm interested in creating a Shmoo-plot using LaTeX. I have looked through the PGFplot-examples but couldn't find any that looked suitable as a starting template. Google produces nothing as well, and ...
6
votes
2answers
12k 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?
6
votes
2answers
542 views

Rindler coordinate chart (family of parametric curves) in TikZ

Is it possible to make a plot like this with TikZ or other drawing packages? This plot visualizes a two parameter family of curves, given by T = x Sinh(t) X = x Cosh(t) The pink curves are ...
6
votes
3answers
4k views

Error: “Dimension too large…” when plotting EXPONENTIALS with TikZ

Despite having read answers to 4-5 relate questions, I still can't get why my code does not compile. Here it is: \documentclass[11pt,twoside]{book} \usepackage[paperheight=24cm, paperwidth=35cm, ...
6
votes
2answers
375 views

drawing smooth path through symmetric points, gives non symmetric curve

I want to make a graphic going through some points. I've choose the points symmetric, to have a symmetric curve, but the curve is not. I could define some extra points, but their must be a better ...
6
votes
2answers
5k views

Proper way to change axis in plot tikz

I am trying to reconstruct the image below in tikz, and I think I have done a fairly decent job. The problem is that my code is a mess. Is there any simple clean way to produce this image? My ...
6
votes
2answers
522 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 ...
6
votes
2answers
575 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: ...
6
votes
1answer
664 views

Plotting a straight line to the peak point of a graph

For the MWE below: \documentclass{report} \usepackage[left=2.5cm,right=2cm,top=2cm,bottom=2cm]{geometry} \usepackage[T1]{fontenc} \usepackage{pgfplots} ...
6
votes
2answers
2k views

Draw angle between two lines in a circle

I'm trying to draw an angle between two lines. I have this code so far, but i cant draw a angle. How do I do it? I'm using PGF/TikZ. \begin{figure} \begin{tikzpicture} \begin{axis}[ ...