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How to apply a cell array of function handles to a cell array of arguments
Use nested cellfun calls X = cellfun(@(fha_i) cellfun(fha_i, C, 'Uni', false), fha, 'Uni', false)

plus de 9 ans il y a | 0

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Negative index of a matrix
for n = 1:5 m = -n:n; for i = 1:numel(m) A(i, n) = m(i)*n; end end

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How to use data from columns whose header lines meet two criteria?
D = [125 250 500 125 250 1 1 1 3 3 91.34 119.5 127.88 113.96 114.09 91.35 120.28 126.28 109.82 117.63 91.36 116.25 123...

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select row and iterate for next rows
If you want to multiply column 1 by alpha = 23 and add column 2, for example, you can to this as follows: alpha = 23; y ...

plus de 9 ans il y a | 0

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fprintf doesn't create new lines
You can fprint to fid == 1 to view the result on the console for testing. This creates newlines fprintf(1,'%d\n', [1 2 3])

plus de 9 ans il y a | 1

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Measuring fit of normcdf and multiple data points
Compute the error from the distance of the points to the line err = p_collapse_mle(x_vals == IM) - num_collapse./num_gms; ...

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Figure & Subplot: Getting rid of needless white space
Try FEX submission tight_subplot

plus de 9 ans il y a | 1

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how to represent e raised to power of x expressions
exp(1j*2*pi*f*T)

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How to retrieve data in column wise in Matlab?
A(:, [1 4])

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32 and 64 bit on same computer
If you have a 64 bit machine you can only install the 64 bit version of Matlab.

plus de 9 ans il y a | 0

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How to calculate concordant pairs in MATLAB
nnz(sign(A(2:end) - A(1:end-1)) == sign(B(2:end) - B(1:end-1)))

plus de 9 ans il y a | 0

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my plot uses 3 symbols and 3 colors. The color in the front isoverlapping the color in the back. What is causing this?
plot(..., 'MarkerFaceColor', 'w')

plus de 9 ans il y a | 0

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How can I subtract vectors of different lengths?
You do not need much code, you can simply write delta = LargerVec(1:numel(SmallerVec))-SmallerVec; or if you want to del...

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Using Mac book Air 2015
Yes, why not? If the CPU and RAM is sufficient for what you consider smooth working depends on the task you want to do, of which...

plus de 9 ans il y a | 0

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need a help doing simple code
To learn Matlab you can start by something like function y = myfunction(W, L, H, R) q=H/L; a=W/q; b=(W*(1-R)/(2*q)); ...

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How to calculate gradient of arbitrary point based on image
One way would be to calculate the gradient for each pixel and then interpolate to get sub pixel accuracy.

plus de 9 ans il y a | 0

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Speed up indexing / Repmat operation
nnz(I) may be faster than sum for logical matrices. Another way could be to pre-allocate cells of ones for all possible ...

plus de 9 ans il y a | 0

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How to convert a ASCII character to matrix
There are datasets around; google 8 x 8 character bitmaps One example is <https://github.com/dhepper/font8x8> To extract a...

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Help using textscan on .csv files
To check if your string contains any invalid characters, i.e., non-digits, you can use ~isempty(regexp(s, '\D')) and the...

plus de 9 ans il y a | 0

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How to make margins in figure again?
help iptsetpref reveals iptsetpref('ImshowBorder','loose')

plus de 9 ans il y a | 0

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What is the reason to get 'The system cannot find the path specified.'?
Have a look at the run_demos_videos file and see if there are any paths set that do not exist on your system.

plus de 9 ans il y a | 1

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How to put names on the six faces of a cube so that they do not disappear in the cube?
help text

plus de 9 ans il y a | 0

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How to get image from a matrix which contains PIXEL values ?
I used Input_Im = imread('peppers.png'); and it worked fine. What do you get with peppers.png?

plus de 9 ans il y a | 0

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Create sparse matrices with integer rows and columns
Probably not. See also <http://stackoverflow.com/questions/30894231/matlab-uint8-sparse>

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Getting pixel values from an image
If your image is stored in I, like from the command I = imread('peppers.png'); the Matlab syntax to select the element in...

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What does this commands mean?
It generates the numbers from 1 up to C, in steps of 6.

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How to make input parameters in m.file and use another function file to write the code, and ask paramters from m.file?
write a script parameters.m alpha = 23; beta = 44; write a function function z = myfunction(x, y) % read scr...

plus de 9 ans il y a | 2

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randomly select different elements of a vector
x = [1 1 1 2 3 4 4 4 5 6 7 7]; for i = 1:4 ind = randperm(numel(x), 1); % select one element out of numel(x) element...

plus de 9 ans il y a | 1

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How do i write the following mathematical equation in MATLAB
If SM is a M * N matrix, you can write mean2(SM) or if you don't have the image processing toolbox mean2(SM(:))

plus de 9 ans il y a | 0

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Decrease the least and increase the highest
B(A == max(A)) = B(A == max(A))*100; B(A == min(A)) = B(A == min(A))*10;

plus de 9 ans il y a | 0