Questions on creating visualizations from functions or data using high-level constructors such as Plot, ListPlot, Histogram, etc.

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239
votes
6answers
116k views

How do I draw a pair of buttocks?

I'm trying to develop a function which 3D plot would have a buttocks like shape. Several days of searching the web and a dozen my of own attempts to solve the issue have brought nothing but two ...
1
vote
1answer
148 views

Plot multiple solutions [duplicate]

I want to plot multiple solutions of an equation, so that one can differ them in the plot. The given equation is e.g. ...
1
vote
2answers
110 views

How to turn an expression into a number

I am working with a function that computes the covariance between two variables. After computing this, I'd like to use Plot or Plot3D to see how this covariance depends on the parameters of the mean ...
2
votes
2answers
389 views

Cumulative histogram with log-log scale

How to do a cumulative histogram on Mathematica on a log-log scale? This question is pretty straightforward, but a search didn't help me at all. Keep in mind that all I have is a list of n numbers ...
1
vote
1answer
229 views

How to extract contour functions from contour plot [duplicate]

I would like to extract the functions that describe the contours of a contour plot. For example, if I have the function: ...
0
votes
0answers
45 views

Direction of change plot in 2 images taken from video

I have two successive images from a video and I would like to plot the largest direction of change from the first image to the second image as a vector plot. For example, if image 1 was ...
1
vote
0answers
196 views

Plotting phase portrait from NDSolve (i.e., must plot x'[x], where $x=x(t)$)

I'm doing a double pendulum system and I wish to plot the phase portraits for each angle. I've successfully used NDSolve to solve for each of the angles. Let's just ...
2
votes
2answers
521 views

How do I add contour labels to contour plot?

I tried ContourPlot[f[x, y], {x, -2, 2}, {y, -2, 2}, ContourLabels->automatic] , but it messes up the contourplot. How can I just add values to the contours ...
2
votes
4answers
405 views

How to create 3d region of f[x,y] over triangular region on xy plane?

I need to create a VOLUME under f[x,y]= x (y^3 + 1)^(1/2) that's above the triangular region bounded by y=x/3, ...
1
vote
1answer
161 views

Plotting ODE solutions with two parameters

I have a system of two first-order ODEs with two parameters, a and b and I'm trying to plot the solution curve in the X-Y plane at a given initial condition for various parameter values. Can someone ...
0
votes
1answer
110 views

Problem with DensityPlot Plot3d of Heavisde function

I have problem with heavisde pi or theta function. When I plot them densly i.e. w[x,y] like this w[x_, y_] = Sum[HeavisidePi[x - i/100], {i, 1, 200}]; I get ...
3
votes
2answers
559 views

Parametric contour plot?

I am trying to plot a contour of a function g(x,y) (in particular, the contour g(x,y)=1) on a different set of axes than (x,y): I want to plot it on (f1(x),f2(y)), where f1 and f2 are (monotone ...
4
votes
1answer
136 views

Can anyone help me to get the solution of this first order ODE?

$\ y'(x)=-\sqrt(y(x)^3)$ with initial condition $\ y(0)=-2$. In fact, this is an example here in page 3-4 ...
1
vote
0answers
62 views

Align a plot with other rotated plot [duplicate]

i'm plotting two plots one of them is rotated 90º and has no axes labels, so my problem is that when i plot them together in a row the alignment options bottom top align the top to top or bottom to ...
0
votes
1answer
289 views

Labelling a bar chart with multiple data sets

I'd like to plot a bar chart with two data sets $\{a_1,a_2,\dots,a_n\}$ and $\{b_1,b_2,\dots,b_n\}$ in such a way that the columns appear in the order $\{a_1,b_1,a_2,b_2,\dots,a_n,b_n\}$ and that each ...
0
votes
1answer
95 views

ColorFunction that depends on angle of line

I have a ListLinePlot, and I want the ColorFunction to vary as the angle, so that the color of the whole line depends on its angle from the x-axis. Here is a MWE of what I am doing: ...
1
vote
1answer
160 views

List(Line)Plot with a big jump

I am trying to plot a joined plot. Some possible ways would be ListPlot with Joined -> True or ...
2
votes
1answer
116 views

plot the numerical value of the average on a BoxWhiskerChart

Im using BoxWhiskerChart to get a boxplot of a matrix of two columns. I need to read the value of the sample average directly from the plot and not from the axes. ...
2
votes
1answer
104 views

Multiple dynamic equations for plotting?

Say I have a bunch of equations between variables e.g. h=bcd, i=hce, j=ihbd, ...
20
votes
1answer
534 views

How to write Morse code into Plot Dashing?

How can we define a dashing pattern in a plot such that it reads arbitrary text in Morse code? For instance Graphics[{DotDashed, Line[{{0, 0}, {5, 0}}]}] ...
1
vote
1answer
88 views

Make plots of solutions persist

How can the code below be modified so that at allow plots of solutions to persist upon clicking in the slope field. For example, after three clicks, the plots of all three solutions should remain. In ...
18
votes
1answer
188 views

Is plot polluting my context?

Bug introduced in 10.0.2 or earlier and fixed in 10.1.0 Whenever I plot something 3 temporary variables get added to my current context. Example (fresh Kernel): ...
1
vote
0answers
49 views

The use of Evaluate in NDSolve and Plotting the answer [duplicate]

I am having a bit of hard time understanding the use of Evaluate when plotting the output of NDSolve. From the documentation, I enter: ...
2
votes
3answers
234 views

How to embed a filled Region in a Graphics?

Let for example: regn = RegionDifference[Rectangle[{-2, -2}, {2, 2}], Disk[{0, 0}, 1]]; The only documented way I found to draw a gereric region ...
4
votes
2answers
227 views

How to plot a function that is not defined after certain point

I'm plotting a function that I get after numerically integrating over another function. Something like: f[x_,y_]:=NIntegrate[g[x,y,z],{z,0,1}] I know that above ...
3
votes
2answers
453 views
6
votes
1answer
292 views

Does anyone know a way to draw lines connecting nearest neighbor points in ListPlot[ ]?

I have a two-dimensional mesh that I am visualizing in Mathematica, with ListPlot[]. The mesh looks like this: Any ideas for how to connect all the nearest neighboring points with lines? Thanks, ...
22
votes
3answers
1k views

Is it possible to draw really thin lines in Mathematica?

I want to have in Mathematica the same result I have in Python: I have this nice effect simply by using very thin lines. But it seems in Mathematica thickness property has some limit and i just got ...
1
vote
1answer
195 views

How to plot curves in ternary plot (triangular plot) [duplicate]

I need to plot the following curve in a triangular (ternary) plot: $$|x_{BB}-x_{AA}|=(\sigma_c-2x_{AB}+1)^{\gamma}, \qquad (1)$$ subjected to the condition (this condition must satisfy for a ternary ...
0
votes
1answer
66 views

I want to import a .csv to Mathematica but when I do that the decimal are denoted by “,”. What can I do? I need points [duplicate]

Import["C:\Users\Maria Del Mar\Desktop\LECCIÓN\masa a.csv", "table", FieldSeparators -> ";"] // TableForm
3
votes
2answers
265 views

How can I best plot timestamps by frequency-to-date?

I have a site called Sudomemo. I record when I first see a user in the database; and I've exported it in JSON format, located here. http://www.sudomemo.net/statistics/firstSeenDump.php I've done ...
1
vote
1answer
103 views

How to exclude a region from ParametricPlot

Suppose I have functions f[x] and g[x] which are defined in the region 0 ≤ x ≤ 1 and ...
1
vote
1answer
134 views

Table for 3D list plot

I have a function which is defined with an integral and a sum, in other words, its numerical, so i want to make a table (nxm) with the following entries: ...
5
votes
4answers
154 views

What is wrong with this code?

I am plotting polar curves with PolarPlot and I tried plotting a parabola with $\frac{2}{1-\cos x}$ and $\sec x$. Obviously there are two singularities that have ...
2
votes
1answer
253 views

White region in ContourPlot

The following code ContourPlot[Min[(-7 + 100 t - x) (5 + 100 t - x), (400 t^2 + 40 t (-5 + x) + (-5 + x) (7 + x))], {t, 0, .05}, {x, -1, 5}, PlotRange -> All] ...
1
vote
1answer
295 views

Plotting knot torus

I'd like to plot together a torus and a knot on it, that is, closed curve wrapping around the torus, $m$ times around a circle and $n$ times around the other circle. It will be used to explain ...
4
votes
2answers
191 views

Label rows and columns of an ArrayPlot?

Is it possible to label the rows and columns of an ArrayPlot? I have a somewhat large matrix, about 90x90. The rows and columns of this matrix have names. I want to plot this matrix using ArrayPlot, ...
2
votes
3answers
215 views

Plot a transformed distribution with an If function

Suppose I have a normal distribution $A \sim \mathcal{N}(\mu,\sigma^{2})$ with a known cutoff point (percentile) on this distribution called $c$. Based on this point the distribution needs to be ...
12
votes
1answer
269 views

How to obtain transparent animated gif via Export?

I have the following code to create animated GIFs: ...
0
votes
1answer
205 views

Power series graphs?

I would like to graph this function and its first 6 Taylor polynomials on the same axis, but I'm not sure how to start: f[x_] = Exp[x]; Plot[f[x], {x, 0, 1}]
0
votes
2answers
106 views

Show legend on plot [duplicate]

I have a series of curve I'm plotting using ListPlot. For each plot I'm changing a variable called X. Is there anyway I could ...
0
votes
1answer
221 views

Help Please : Error in plotting the solutions of FindRoot

I want to find the roots of an equation using FindRoot as a function of a real parameter K and then plot the real and imaginary solutions vs. the parameter K. The function I'm trying to find the ...
0
votes
1answer
102 views

Count intersections of two non-polynomial functions [duplicate]

I have two Bessel functions, and I need to be able to count the number of intersections if both functions are plotted dependent upon the same variable. I can use FindRoot or FindInstance to get one ...
2
votes
1answer
88 views

Plot several columns of table with variable number of columns and display the legend accordingly

I use this command to plot all values from the 1st column of Table "results" against all values from the 2nd column: ListLinePlot[{results[[All, {1, 2}]]} Now, ...
3
votes
3answers
198 views

How to detect outlier in data of an unknown function $f(x)$

Suppose I have an unknown function $f(x)$ that is monotonic, convex and nonlinear by definition. I somehow evaluated it at 1000 nonuniform $x$ points. By ploting these data, I found a very obvious ...
0
votes
2answers
151 views

manipulating the X axis notation in mathematica graph [duplicate]

I plotted a graph in mathematica that displays the function M/1480 = (4*Pi*G*r)/(3c^2) R^3 here , ...
0
votes
2answers
54 views

How to discern the different curves?

When we plot many curves, due to repeated colors it becomes difficult to discern that which curve belongs to which equation. For instance, ...
1
vote
2answers
166 views

How to create an effective PlotLegend when plotting many ListPlots?

I'm creating a ListPlot where I plot many data sets simultaneously. Currently, my code that produces it is something like this: ...
2
votes
2answers
134 views
1
vote
1answer
123 views

“Independent” Variables in Manipulate

I am trying to plot the solutions to the Kepler problem. I am using Manipulate. It plots the orbits, the equipotential lines and the position of the planet. When I move the time variable, only the ...