Respondida
Is there known relationship between eigenvalues of covariance matrix and correlation matrix?
The documentation for <http://www.mathworks.com/help/techdoc/ref/corrcoef.html corrcoef> describes the relationship between the ...

más de 14 años hace | 0

Respondida
Triple Integration without Symbolic Math Toolbox
The first thing you need to do is rewrite this as a <http://www.mathworks.com/help/techdoc/ref/function.html function> with the ...

más de 14 años hace | 0

| aceptada

Respondida
Multivariate Guassian Distribution
You're really trying to do two things here. The first is, you have some random data and you want to fit it to a multivariate nor...

más de 14 años hace | 1

| aceptada

Respondida
PCA values
Eigenvectors are a little arbitrary. If |A| is a matrix and |b| is one of its eigenvectors, then so is |b| multiplied by any sca...

más de 14 años hace | 0

| aceptada

Respondida
Matrix Independance
You can use <http://www.mathworks.com/help/techdoc/ref/rank.html rank>.

más de 14 años hace | 0

| aceptada

Respondida
purpose of a period in a var set/equation ?
With the dot, it indicates element-by-element multiplication instead of matrix multiplication. See <http://www.mathworks.com/hel...

más de 14 años hace | 0

Respondida
Excessive Run Time For back solve of 'huge' symbolic matrices.
Do you really need the symbolic answer? It's probably very complicated, and not very edifying. You could create a function that ...

más de 14 años hace | 0

| aceptada

Respondida
Problem with 4-d integral i MatLab
You can insert a single integral as an argument in |triplequad|: zmin=-tau_m; zmax=tau_m; f1 = @(r,z1,z2) quadv(@(z) intgn...

más de 14 años hace | 0

| aceptada

Respondida
how to find t-score
If you mean the score on the t test, you can use <http://www.mathworks.com/help/toolbox/stats/ttest.html ttest>.

más de 14 años hace | 0

Respondida
3d plot
See <http://www.mathworks.com/products/matlab/demos.html?file=/products/demos/shipping/matlab/demoDelaunayTri.html#3 Create and ...

más de 14 años hace | 0

| aceptada

Respondida
OOP in Matlab: Why can't methods access properties directly?
If I understand your problem correctly, you could make |SetOfPoints| into an object array, where each element ( _e.g.,_ |SetOfPo...

más de 14 años hace | 1

| aceptada

Respondida
Connecting lines in 3-d Graph
If you want to combine (c,b,a) and (e,f,d) into a single line, you can do the following: x = [c; e]; y = [b; f]; z = [a; d]...

más de 14 años hace | 0

Respondida
Data size mismatch..
The function |mle| expects |data| to be a vector. Use p = mle(data(:,2), ... instead of p = mle(data, ...

más de 14 años hace | 0

| aceptada

Respondida
converting yyyymmdd date to matlab date number
For each date, use a command like this: datestr(datenum('19940127','yyyymmdd'),'mm/dd/yyyy')

más de 14 años hace | 3

| aceptada

Respondida
The curve in 3 dimensional space fitting.
You could fit a polynomial THRESHOLD(ALFA,BETA) using the File Exchange function <http://www.mathworks.com/matlabcentral/fileexc...

más de 14 años hace | 0

Respondida
How to do curve fitting with two variables (using lsqcurvefit )
What you need is the <http://www.mathworks.com/help/toolbox/curvefit/sftool.html Surface fitting tool>.

más de 14 años hace | 0

Respondida
The curve in 3 dimensional space fitting.
Let's back up a step. I think what you are trying to do is estimate the parameters of a generalized Pareto distribution for a si...

más de 14 años hace | 1

Respondida
all simple paths problem
The package <http://www.mathworks.com/matlabcentral/fileexchange/24134 gaimc> implements the breadth-first search mentioned in y...

más de 14 años hace | 0

| aceptada

Respondida
Extracting a rotation axis from a rotation matrix
tol = 100*eps; i = find(abs(diag(D)-1)<tol); rotAxis = V(:,i); (Edited to take rounding error into account. Increase |tol...

más de 14 años hace | 1

| aceptada

Respondida
Call superclass method without knowing name of superclass?
How about just wrapping the call in its own method? If you'll forgive a little Monty Python whimsy, suppose your overloaded meth...

más de 14 años hace | 0

Respondida
Matlab with MacBook Air
Some follow-up thoughts: I think the most important comment that Walter made was "compared to what?" To which I would add, "For ...

más de 14 años hace | 0

Respondida
Matlab with MacBook Air
Here are some benchmarks I obtained using <http://www.mathworks.com/matlabcentral/fileexchange/1836 bench>. Note that my Mac Boo...

más de 14 años hace | 2

Respondida
Call superclass method without knowing name of superclass?
I can't think of a good way to use dynamic superclass names, and it sounds like bad programming practice to me. Here is a di...

más de 14 años hace | 0

Respondida
Help with "find" (possibly inside of "eval"?)
Read <http://www.mit.edu/~pwb/cssm/matlab-faq_4.html#evalcell this FAQ>.

más de 14 años hace | 0

| aceptada

Respondida
Direct Solver
You need to make your matrix explicitly sparse, using commands like <http://www.mathworks.com/help/techdoc/ref/sparse.html spars...

más de 14 años hace | 0

Respondida
Creating 2d grid from cell array of data points
If your cell array is |c|, you could use x = cell2mat(c(:)); plot(x(:,1),x(:,2),'.') The colon operator in |c(:)| makes |c...

más de 14 años hace | 0

| aceptada

Respondida
Hatching a region between two functions
To fill the region between lines with a color, you could use a command like patch([x; flipud(x)],[f; flipud(g)],'r') The...

más de 14 años hace | 1

| aceptada

Respondida
Fourier Transform of 2d
Unless there is an essential property of the centroid distance shape descriptor that you haven't mentioned, you could approach t...

más de 14 años hace | 0

| aceptada

Respondida
Plot 3d graphs of a 2D gaussian function
If the above data are copied into a file |2dGaussianData.dat|, the following code can give you the surface you want: A = im...

más de 14 años hace | 1

| aceptada

Respondida
Intermediate variables value at the optimisation achievement
The newsgroup thread <http://www.mathworks.com/matlabcentral/newsreader/view_thread/125572 Intermediate results of Optimization>...

más de 14 años hace | 0