5
votes
0answers
138 views

Shell Scheme with pgfplots/gnuplot

I have a problem with pgfplots. I want to create a shell scheme from an E-motor characteristics. In the end it should look like this (well, with some more pleasing colours): The data is stored in a ...
3
votes
0answers
35 views

Independent coloring of contour and 3D plot in pgfplots [duplicate]

I have a problem with pgfplots where the addition of a contour plot at the bottom of a 3D plot changes the coloring of the surface plot. This is a simple example: ...
0
votes
0answers
147 views

pgfplots + gnuplot not working, shell escape and windows PATH are ok

I'm trying to get pgfplots to work with gnuplot to get this answer to work (i.e. triangulate a surface from a set of points). Shell escape was already enabled since I use TikZ externalization. gnuplot ...
3
votes
1answer
143 views

PGFplots and GNUplot with addplot3

I am trying to plot the following: \documentclass[tikz, convert = false]{standalone} \usepackage{pgfplots} \pgfplotsset{compat = 1.9} \begin{document} \begin{tikzpicture} \begin{axis}[view = ...
3
votes
0answers
190 views

using gnuplot to plot data from a file

I am trying to plot some data using pgfplots, but the data are so extensive that the maximum capacity is reached. I get the error: TeX capacity exceeded, sorry [main memory size=3000000]. What can I ...
3
votes
2answers
206 views

TikZ, PGFPlots, or GNUplot: plotting a curve without the known function

I would like to make a plot of a function that has an overshoot of 25% and then settles with subtle oscillations at 100%. I would like to create it in one of the listed packages or in gnus case add ...
4
votes
3answers
252 views

pgfplots: Plot inverse function (function of y)

I am trying to plot the Ramberg-Osgood-relationship for a specific material with pgfplots. The relationship describes the stress-strain-curve, that is the stress as a function of the strain. The ...
2
votes
1answer
162 views

PGFPlots and gnuplot: How to add asymptote, a xtick that isn't a number, and can intersection be used?

\documentclass[tikz, convert = false]{standalone} \usepackage[utf8]{inputenx}% http://ctan.org/pkg/inputenx % Euler for math | Palatino for rm | Helvetica for ss | Courier for tt ...
7
votes
3answers
435 views

pgfplots: 3D surface plot from data with free format

I want to plot 3D data from a file (data file) using pgfplots. The data represents an ellipsoid. I want to draw the outer shell like in the following picture, just without the background and in ...
3
votes
1answer
160 views

Force pgfplots to draw legend according to cycle list instead of the first plots

I use pgfplots to plot multiple curves from a file. The graph is plotted in two steps Draw only the marks, taking the original values from the file Draw only the lines, approximating the curve of ...
6
votes
0answers
170 views

Different color [closed]

I use the following code to generate a plot \documentclass{article} \usepackage{xcolor} % colorize your documents \usepackage{graphicx} % and use graphics \usepackage{tikz,pgfplots} % ...
17
votes
4answers
716 views

What is the best way to produce TikZ picture for discrete signals?

I would like to draw discrete signals, as shown in the illustration below, but not by way of drawings of individual lines.gnuplot could be used for this work? It would be nice to be able to choose the ...
2
votes
1answer
267 views

Label functions generated with gnuplot in pgfplots

I would like to generate four hyperbolas in the plane and label them. I'm using the following code (sorry for its length, feel free to shorten it...): \documentclass{standalone} \usepackage{pgfplots} ...
8
votes
1answer
258 views

Fitting on log log axis

I try to fit data which I plotted on a double logarithmic scale. I use LaTeX and gnuplot. [It works with pdfLaTeX with adding the additional argument "--enable-write18" and directing the path of ...
1
vote
1answer
239 views

datetime plot in pgfplot using gnuplot

I have a large data file with several columns wherein the first column is a date and time in the format, 'yyyy-mm-dd hh:MM' and the rest are numerical values of different variables. I often have ...
7
votes
1answer
183 views

What is wrong with this code to plot '(y^2)/2-cos(x)'?

I want to contour plot the curves (y^2)/2-cos(x)=c with the following code, but there are only straight line in the output figure. What's wrong? Any help or suggestions will be appreciated! ...
10
votes
2answers
587 views

plot 3d graphs of functions defined implicitly

How can I plot 3d graphs of functions defined implicitly (quadratic forms, for Linear Algebra course notes -- I'd like to include lots of examples)? As far as I can see it is not possible with ...
4
votes
1answer
211 views

output-directory and shell commands

Let's use a small example to use gnuplot to draw a nice function using tikz. \documentclass{standalone} \usepackage{tikz} \begin{document} \begin{tikzpicture} \draw plot[domain=-3:3,samples=100] ...
2
votes
1answer
333 views

Setting gnuplot-like colormaps with pgfplots

I would to use the gnuplot default colormap with pgfplots. This colormap is defined in gnuplot with set palette rgb 7,5,15 where the numbers refer to a function for the red, green and blue colours ...
2
votes
1answer
141 views

Why do these two plot commands give different results?

Why the following two MWE codes, using pgfplots with and without gnuplot give different results (a phase shift)? \documentclass{article} \usepackage{pgfplots} \begin{document} \begin{tikzpicture} ...
3
votes
1answer
235 views

Have gnuplot inherit the domain from pgfplots

I'm using domain=min:max within pgfplots, but unless I provide the same limits to gnuplot explicitly, they are ignored and gnuplot proceeds with plotting in the range [-10,10] (I assume that is the ...
5
votes
1answer
237 views

Line style not updated when using gnuplot within pgfplots

I have a large data file with multiple columns. This makes it impossible for me to add multiple \addplot commands manually, so I am using gnuplot from within pgfplots. The problem is that gnuplot does ...
14
votes
2answers
787 views

Fill a contour-plot

I did some calculations in Mathematica that gave me a contour plot: To include the output I wanted to however draw it with pfgplot. But there I don't get it to work, first of all the y-axis doesn't ...
13
votes
2answers
1k views

Big data surface plots: Call gnuplot from tikz to generate bitmap and include automatically?

Motivation I have large numerical data files, that I would like to create density (surface) plots of. Since they are very big, we can rule out a few possibilities such as to plot them directly with ...
5
votes
1answer
805 views

Automatic binning of histogram using raw gnuplot in pgfplot

I have a problem in plotting a histogram using the raw gnuplot in pgfplot. A minimal example is below. \documentclass{article} \usepackage{tikz} \usepackage{pgfplots} \usepackage{pgfplotstable} ...
3
votes
1answer
141 views

Gnuplot invisible

I'm trying to plot two implicit curves (using pgfplots and raw gnuplot) but they don't appear in the document. In gnuplot it works just fine so I guess it has something to do with pgfplots but i can't ...
2
votes
1answer
1k views

Enabling “--shell-escape” on TeXworks under MiKTeX

After resolving the problem on my previous question, I applied to finally install Gnuplot 4.6; and after a successful installation I had to allow the --shell-escape option on TeXworks, so I added a ...
5
votes
1answer
243 views

Draw ticks over external plot using pgfplots

I plotted a contour/surface plot with gnuplot using set pm3d map and want to include this picture via \addplot graphics {...};. When I match the plot area of the axis environment with the plot range ...
6
votes
2answers
756 views

PGFPlots: Mathematical expressions

Question Is there a way to include mathematical expressions in PGFPlots, for example, [domain=1/3:e^5/3]? PGFPlots is fairly useful, however the ability to put mathematical expressions directly into ...
6
votes
1answer
1k views

How can I setup PGFPlots to work with gnuplot?

Notes: I'm using Windows 8 and TeXworks. Also, I have never used gnuplot by itself, so I am unfamiliar with it. I'm trying to use PGFPlots with gnuplot to graph functions. I have not been able to ...
3
votes
1answer
631 views

pgfplots: plotting data with gnuplot

I try to plot a data file (test2) which contains a header and 2 columns. My pdfLaTeX (argument: --enable-write18) gives me not the result I get with executing gnuplot.exe. This is the code: ...
5
votes
2answers
1k views

raw gnuplot in pgfplots

I have a problem with the gnuplot environment in pgfplots. I already set "--enable-write18" in the argument of pdfLaTeX and added the path of gnuplot.exe to the PATH-variable in the advanced system ...
6
votes
2answers
458 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: ...
5
votes
2answers
670 views

How can I plot bigger amounts of data?

I am currently playing around with hailstone sequences (collatz numbers). I would like to create a plot like this (from Wikipedia): But I don't know how this kind of plot is called (it's neither a ...
5
votes
1answer
437 views

pgfplots with gnuplot

I got a problem with latex implementing a gnuplot code. I use PdfLatex with argument "--enable-write18". The following code should works with the first commented-out line %plot 'data.dat' u 1:2;, but ...
7
votes
3answers
3k views

Easiest way to plot matrix image

Is there an easier way to create this in pgfplots than plotting the matrix image externally and using addplot graphics (as on p.42 of the pgfplots manual)? A mesh plot (as suggested for plotting ...
3
votes
0answers
215 views

Using pgfplots and gnuplot and compiling with output-directory

I would like to use the pgfplots package along with gnuplot. However, I cannot get this to work if I compile using the -output-directory option. For example, if I have the following MWE: ...
5
votes
1answer
261 views

How to plot small function values in pgfplots?

I am trying to visualize two functions in pgfplots and I can't get my main message across that both end at the same point. How can I change this behaviour, preferably without additional external ...
5
votes
1answer
179 views

pgfplots: Read expression from file

For my lab reports I often have to do complex fitting and transformations to my data (like fitting cauchy distributions or FFT). Fitting with gnuplot sometimes fails and including it directly in the ...
2
votes
1answer
1k views

gnuplot and TexnicCenter setup

I just downloaded and ran the gnuplot setup exe. Now, how do I setup TeXnicCenter and gnuplot so I can use gnuplot with TikZ? So I have been able to add --enable-write18 but the inverted cycloid ...
5
votes
1answer
275 views

How to plot just part of the function with pgfplots, gnuplot

I have the following code. \begin{tikzpicture} \begin{axis}[domain = -2:2 ,y domain = -2:2,view={0}{90}] \addplot3[contour gnuplot={number=10},thick,domain=-2:2] ...
2
votes
1answer
348 views

error while using gnuplot in pgfplots

I am using pgfplots and tikz library for generating some figures. my problem is that I can not use gnuplot within pgfplots. I tried to compile the following code bu seemingly the gnuplot is not ...
5
votes
1answer
636 views

pgfplots contour example error

I'm reproducing the following example from pgfplots manual. \begin{tikzpicture} \begin{axis}[view={0}{90}] \addplot3[contour gnuplot] {x*y}; \end{axis} \end{tikzpicture} But this code produces the ...
6
votes
1answer
648 views

Improve pfgplots precision with gnuplot

I have measured the execution time of two algorithms (a naive, and an optimized one), and I would like to display measured data with pgfplots plus a trend line for the naive algorithm. I have used ...
3
votes
0answers
504 views

multiple non linear curve fitting using pgfplot for IC50 [closed]

My question is related with Non-linear curve fitting with gnuplot .I want to make multi IC50 using that plot which give result red, green and blue line, but only blue line appeared. this is MWE ...
7
votes
1answer
1k views

gnuplot calculated curve shifts to the left

The following code samples are borrowed from Test 1 and Test 2. My computer configuration is Windows XP SP.3 Japanese version, MiKTeX 2.9 (already updated), TeXmaker 3.5 or TexStudio 2.4 and ...
3
votes
2answers
2k views

IC50 with curve fit line and value of IC50 appear on the graph using pgfplot

Please help me to make IC50 graph with data as follow S(mM) Activity (%) 0.00080 99 % 0.00800 91 % 0.08000 89 % 0.40000 89 % 0.80000 79 % 1.60000 61 % 4.00000 39 % 8.00000 25 % 80.00000 4 % ...
4
votes
0answers
796 views

pgfplot vs gnuplot [closed]

I am writing a document containing many plots. I have used gnuplot in the past and I love it. It's powerful and you can do anything you want. But when I import a graph generated from gnuplot, the ...
4
votes
1answer
932 views

label curve and/or contour name created with pgfplot via gnuplot

I will want to name different contour as one can see it on topographic card. How to do that? I want label on different curve with the parameter that distinguish the curves. I have created 10+10 curves ...
4
votes
3answers
789 views

Incorrect plot with pgfplots and gnuplot

I'm attempting to plot atanh(x) although there seems to be a giant straight line linking the top and bottom points. Am I doing something wrong? \documentclass{standalone} \usepackage{pgfplots} ...