Beantwortet
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)

etwa 10 Jahre vor | 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

etwa 10 Jahre vor | 0

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Beantwortet
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...

etwa 10 Jahre vor | 0

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Beantwortet
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 ...

etwa 10 Jahre vor | 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])

etwa 10 Jahre vor | 1

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Beantwortet
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; ...

etwa 10 Jahre vor | 1

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

etwa 10 Jahre vor | 1

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

etwa 10 Jahre vor | 0

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

etwa 10 Jahre vor | 0

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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.

etwa 10 Jahre vor | 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)))

etwa 10 Jahre vor | 0

Beantwortet
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')

etwa 10 Jahre vor | 0

Beantwortet
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...

etwa 10 Jahre vor | 0

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Beantwortet
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...

etwa 10 Jahre vor | 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)); ...

etwa 10 Jahre vor | 0

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Beantwortet
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.

etwa 10 Jahre vor | 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 ...

etwa 10 Jahre vor | 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...

etwa 10 Jahre vor | 0

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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...

etwa 10 Jahre vor | 0

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

etwa 10 Jahre vor | 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.

etwa 10 Jahre vor | 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

etwa 10 Jahre vor | 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?

etwa 10 Jahre vor | 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>

etwa 10 Jahre vor | 0

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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...

etwa 10 Jahre vor | 2

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

etwa 10 Jahre vor | 1

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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...

etwa 10 Jahre vor | 2

Beantwortet
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...

etwa 10 Jahre vor | 1

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Beantwortet
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(:))

etwa 10 Jahre vor | 0

Beantwortet
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;

etwa 10 Jahre vor | 0

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