2
votes
1answer
106 views

Plot 3D boolean Array or matrix in Mathematica

I have been attempting several methods to plot a 3D diagram of a n by n boolean array in Mathematica but none of them produced satisfactory result. I want the $3D$ plot to have a cube when ...
1
vote
1answer
81 views

Extracting Imported Information

What I want to do is to compare the relationship between the consumption of say beer and wine using scatter plots where each point designates the particular country (preferably named). I have tried to ...
0
votes
0answers
82 views

How to make list density plot in polar coordinates?

I have a matrix like this {{r1,a1,f1},{r2,a2,f2}...{rn,an,fn}} where r,a and f are the radius, angle and the function value at this given r and a. I want to make a density plot, but it seems that I ...
0
votes
0answers
55 views

I need to draw a direction field and x1 vs t graph for the ode

I have written the following codes and i am able to get to the trajectory but not able to draw the direction field and x1 or x2 vs time plots. ...
2
votes
1answer
135 views

Plotting a matrix in 3D With specific ticks [duplicate]

I have matrix and I want to plot it in 3D ...
4
votes
2answers
161 views

Using two color functions in a MatrixPlot

I'm trying to use two color functions within one MatrixPlot in Mathematica. Is it possible to do this? For example, using a very simple matrix: ...
1
vote
3answers
110 views

How can I threshold for a minimum value with MatrixPlot?

Looking at the Options for MatrixPlot, there doesn't seem to be a mechanism for lowerbound threshold - i.e. ignoring values that ...
2
votes
1answer
148 views

How do I plot Numerical Range of two hermitian matrices

Let $A_1$ and $A_2$ be two $3\times 3$ hermitian matrices. Then their numerical range is defined as two-dimensional set \begin{align} \mathbb{S}=\{\left[u^HA_1u,u^HA_2u\right]\in ...
4
votes
2answers
2k views

How to use a 3×3 covariance matrix to plot an error ellipsoid?

I have a 3×3 error covariance in Mathematica, but I don't know how to use it for plotting the error ellipsoid. It would be great if you can show me how I can do that for the below covariance matrix: ...
0
votes
1answer
142 views

Discrete 3D plots of median ratios of two 2D matrices of lists of values

Lets say I have 2 2D arrays where each cell contains a list of values: Example: ...
2
votes
2answers
191 views

How can I shift the frame ticks to the corner of each element-cell in a Matrixplot?

I am using the following code,to create a Legend for my plot. I would like to shift (or re-position) the frameticks to the corner of each of the cell-elements instead of being in their middle. I ...
5
votes
1answer
806 views

Problem with plotting eigenvalues

I want to plot the eigenvalues of a matrix which is dependant on a parameter (well, actually I want to plot a tight-binding electronic band structure). The dimension of the hamitonian matrix is ...
0
votes
2answers
329 views

Matrix Plot – Little Exercise

Hi there, mathematicians. I'm not very good at coding plots in Mathematica, so I was hoping that one of you could help me solve a problem I'm having. I have the following matrix plot: ...
4
votes
2answers
437 views

Loop and do operations on Matrix, then graph the results

I'm trying to do some operations to a matrix in a loop, and then I want to graph the results. The results are pair of numbers. Can I store the results of each iteration on "something" and the use ...
4
votes
2answers
219 views

Transform x-scale of data for e.g. MatrixPlot

I have to transform in a nonlinear way the x-scale of some data for a MatrixPlot (or ReliefImage or ...
5
votes
1answer
1k views

Is it possible to substitute tick labels with alternative text? [duplicate]

Possible Duplicate: Labelling ArrayPlot Charts I am making a MatrixPlot. For example, consider the following: ...
16
votes
3answers
340 views

How to improve this code for exploring large matrices?

What I'm actually trying to do is to elaborate this question. I'd like to use Pane with scrollbars enabled to explore large (sparse) matrices like this one: Here ...