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How to update struct array fields with mutiple values
What timing! It happens that the <http://blogs.mathworks.com/pick/2012/03/02/when-deal-doesnt-work-disperse-2/?utm_source=feedbu...

12 years 前 | 0

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calculating average
Here is some code that might do the job. I am assuming that your image is truecolor, so the data have dimensions |M x N x 3| for...

12 years 前 | 0

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compass plot offsetting the origin
You could make a couple of subplots: subplot 211 compass(...) subplot 212 compass(...) *EDIT*: However, if you really...

12 years 前 | 0

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Q: solving ax=0 with regularization?
There is a package called <http://www.mathworks.com/matlabcentral/fileexchange/52 regtools> in the File Exchange that might help...

12 years 前 | 0

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Amend code to save file in a different format
You could use this code: fid = fopen('example.txt','w'); fprintf(fid,'%i %i %i %i %i %i %i\n',D); fclose(fid); If you ...

12 years 前 | 0

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Hole filling by interpolation method?
If your data are irregularly spaced, you could try using <http://www.mathworks.com/help/techdoc/ref/triscatteredinterpclass.html...

12 years 前 | 0

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Sym
Use <http://www.mathworks.com/help/toolbox/symbolic/vpa.html vpa>, e.g., c = vpa(a*b,4)

12 years 前 | 1

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Colorbar in an other figure...
The *really* simple way to do it is to just grab the bar with the mouse and move it. Do you want to automate this? If you do ...

12 years 前 | 0

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Display Text Without Formatting
You can replace all the occurrences of |href| by |HREF| for display: str = {'<a href="test">TEST1</a>';'<a href="test">TEST...

12 years 前 | 0

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text to annotate figure
Sounds like you might want to use <http://www.mathworks.com/help/techdoc/ref/legend.html legend>.

12 years 前 | 0

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Get the "handle number" of a standard handle class
Setappdata seems best because of the limitations on using the UserData property (see <http://www.mathworks.com/support/tech-note...

12 years 前 | 1

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visualization of 3D matrix: how do I swap the y and z axis?
You can use <http://www.mathworks.com/help/techdoc/ref/permute.html permute> to rearrange the order of the dimensions and <http:...

12 years 前 | 2

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Matlab Array Division
It's just d2 = 200./d1; Note the dot. This is element-by-element division (see <http://www.mathworks.com/help/techdoc/re...

12 years 前 | 1

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How to remove this error Improper assignment with rectangular empty matrix.
I can't reproduce your exact error message, but it is probably occurring because either |va| or |vb| are empty (there weren't an...

12 years 前 | 0

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nicer outcome from fprintf
There are two approaches you could use. One is just to specify the width of each field: fprintf(fid{i},'%12s\t%12s\t%9.6f\n...

12 years 前 | 0

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what is the normalizings in generalized eigvalues in matlab
The documentation for |eig| says that the vectors are not normalized. *EDIT*: <http://www.mathworks.com/help/techdoc/ref/qz.h...

12 years 前 | 0

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wrapping
You could save the changes when you unwrap and then reverse them: pw = unwrap(pold); pdiff = pw-pold; ... % change pw her...

12 years 前 | 0

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What are the rules for naming script files?
Check out <http://www.mathworks.com/help/techdoc/matlab_prog/f10-60729.html Variables> and the documentation for <http://www.mat...

12 years 前 | 0

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Handles and Function outputs?
This code is solving |rho*Cp*(du/dt) = d/dx(k du/dx)| (a heat transport equation). The terms |c, f, s| returned by |pdex1pde| co...

12 years 前 | 0

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For loop of symbolic variables extracting symbolic coefficients
See <http://www.mathworks.com/matlabcentral/answers/242-how-to-generate-symbolic-variables-dynamically-at-run-time How to genera...

12 years 前 | 0

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matrix values as text on plot
You could do all the text commands in a loop, for example: A = randn(20); x = linspace(0,1,20); y = x; pcolor(x,y,A); col...

12 years 前 | 0

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Why your question is NOT "urgent" or an "emergency"!
Just for curiosity, has anyone seen a genuinely urgent question?

12 years 前 | 2

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program that calls itself
See <http://www.matrixlab-examples.com/recursion.html Recursion - a conceptual example>.

13 years 前 | 0

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symprod error
Are you sure you have the Symbolic Toolbox? Try typing |ver| and see if it is one of the ones listed. If it is listed, maybe ...

13 years 前 | 0

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font problem ??
The default interpreter is actually TeX, and maybe that is causing your problem. Try this: h2=ylabel('$k^2/(2 \pi)$') set(...

13 years 前 | 0

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Help with fsolve in for loop!
The source of the error is probably your references to |x(1)| and |x(2)|, because you have defined |x| as a scalar in |syms x|. ...

13 years 前 | 0

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Semiautomatic complex-step differentiation of real-valued functions
There is another implementation in <http://www.mathworks.com/matlabcentral/fileexchange/11870-numerical-derivative-of-analytic-f...

13 years 前 | 1

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LEGEND TITLE
There is a lot of information buried in layers of handle graphics. You can do the following: hleg = legend('820mm','750mm',...

13 years 前 | 4

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problem with command solve inside a function.
When I try running this function function [a,tt] = runtest(ka,landa) [a,tt] = test(ka,landa); I get the same answer for...

13 years 前 | 0

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已回答
lsqcurvefit command window exit flag suppression
You could include |options| in your call to |lsqcurvefit| and set |Display| to 'off': opts = optimset('lsqcurvefit'); opti...

13 years 前 | 0

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