Respondida
surface plot
[a b] = meshgrid(0:.1:1,0:.01:.1); c = a + b; surfl(a,b,c)

casi 15 años hace | 0

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surface fitting
Add folder which contains this function to search path, and type: help gridfit

casi 15 años hace | 0

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surface fitting
See: <http://www.mathworks.com/matlabcentral/fileexchange/8998-surface-fitting-using-gridfit> You can also write your own ...

casi 15 años hace | 0

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meshing in matlab
See: <http://persson.berkeley.edu/distmesh/ DistMesh - A Simple Mesh Generator in MATLAB> Or if you have pdetool: <http...

casi 15 años hace | 0

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change polar axes
See: <http://www-europe.mathworks.com/matlabcentral/answers/18457-how-to-plot-only-half-of-a-polar-plot-i-e-only-the-lower-hemis...

casi 15 años hace | 0

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DelaunayTri output relation to inputs
Analyze this code, I think that it will help you to understand DelaunayTri: [tri_x tri_y] = meshgrid(-1:.5:1); tri_x = t...

casi 15 años hace | 0

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Optimization gives only small changes in each step, Why and how to solve it?
What is the objective function? Maybe your starting points are located far from the minimum and the function is flat. Plea...

casi 15 años hace | 0

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Removing Background (To count cells in image)
You do not have to do, just follow the assistant instructions :) Here's the example: <http://blogs.mathworks.com/steve/200...

casi 15 años hace | 0

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how to select minimum value from matrix
m = min(sr) see also: doc min

casi 15 años hace | 1

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Errorbar + multiple plots + one legend
Remove the semicolon in legend to errorbar.

casi 15 años hace | 0

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Variable names in fsolve
Just replace the variables: function F = myfun(x) Y = x(1); C = x(2); I = x(3); . . .

casi 15 años hace | 0

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how to increase the number of rows and columns of an image in Matlab?
Something like this: a = rand(2,2,3) a(3,3,3) = 0

casi 15 años hace | 0

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PDEPE and BCFUN
Below is the full code: function heat1D m = 0; xmesh = linspace(0,1,20); tspan = linspace(0,3,60); sol ...

casi 15 años hace | 2

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Solving time shifted differential equations
Read in documentation: <http://www.mathworks.com/help/techdoc/ref/dde23.html> <http://www.mathworks.com/help/techdoc/ref/d...

casi 15 años hace | 0

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Partial Differentiation of a function
One of the possibilities: syms x y f=x^2+2*y^2-22 P=diff(f,x) subs(P,{x,y},{1.5,2})

casi 15 años hace | 7

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tab delimited .txt file
Suppose that your Data is: Data = [1 2 3;4 5 6; 7 8 9]; Would you like to create such a file? line1 1 2 3 line2 ...

casi 15 años hace | 2

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Recovering list of polling points with patternsearch
The solution is a little dangerous :) Go to directory *matlabroot/toolbox/globaloptim/globaloptim/private/*: cd(matlabroot) ...

casi 15 años hace | 0

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parallel processing patternsearch.m ?
Set the following options using psoptimset: * 'CompletePoll' to 'on'. * 'Vectorized' to 'off' * 'UseParallel' to 'always'.

casi 15 años hace | 1

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Respondida
A bug in Patternsearch with cache on?
*patternsearch* implements Cache as a persistent variable, so you can't use it in this way. You have to set 'cache' to 'off' in ...

casi 15 años hace | 0

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gamultiobjective
In documentation is a detailed description (with references): <http://www.mathworks.com/help/pdf_doc/gads/gads_tb.pdf>

casi 15 años hace | 0

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Shaded surface
St11=100; Sc11=St11*2/3; St22=80; Sc22=St22*2/3; S=60; i1 = 0; r = NaN(101,51); for phi=0:pi/50:2...

casi 15 años hace | 0

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Shaded surface
[psi phi] = meshgrid(0:0.05:2*pi); r = 1; x=cos(psi).*cos(phi).*r; y=cos(psi).*sin(phi).*r; z=sin(psi).*r; surf...

casi 15 años hace | 0

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patternsearch - ignoring TolFun
Algorithm stops when change in the *objective function* in two consecutive iterations and the *mesh size* are both less than Fun...

casi 15 años hace | 0

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Invert Matrix Command
Statement A=B.\1 doesn't calculate an inverse matrix. You probably mean: A2=B\eye(size(B)) *B^-1* and *inv(B)* give the same...

casi 15 años hace | 0

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extract Vector's index from Matrix
*ismember* function might be helpful.

casi 15 años hace | 1

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file manipulation
doc movefile doc mkdir

casi 15 años hace | 0

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for loop
for i=1:10 mkdir (sprintf('folder_%i',i)) end

casi 15 años hace | 0

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convert number of 5 digits to characters
doc sprintf doc num2str

casi 15 años hace | 0

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Sum of Euclidean distances
sum((xyz(2:end,:)-repmat(xyz(1,:),size(xyz,1)-1,1)).^2,2).^0.5 or with loop; for k=2:5 d(k-1) = norm(xyz(1,:)-xyz(k,:)...

casi 15 años hace | 0

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function call
Something like that: function my_fun(directory,n) a = dir(directory); % a(1) is folder '.' % a(2) is folder '..' ...

casi 15 años hace | 0