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Vectorizing a loop that calculates cosd on every element?
You don't need vectorization to avoid computing the cosine on every iteration through the lambda loop - just put the calculation...

etwa 11 Jahre vor | 0

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what is the difference between imshow(im) or imshow(im, [])
If the second argument is not a spatial referencing object, a colormap or a string, it specifies the display range. From the <ht...

etwa 11 Jahre vor | 1

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I need help arranging two vectors
[AreaSorted, idx] = sort(Area); LengthSorted = Length(idx); WidthSorted = Width(idx);

etwa 11 Jahre vor | 2

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changing time from decimal days to +- 0 from high water
Guessing a bit, because you don't tell us what |pf| and |tf| are, but assuming they are water height and time vectors, I suspect...

etwa 11 Jahre vor | 0

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tell me about the methods to display an image and to display a part of image
See doc imshow You can select part of an image using indexing, or if you have the Image Processing Toolboox, with |imcro...

etwa 11 Jahre vor | 0

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Percentile of a value based on array of data
% Test data historicalData = rand(1000, 1); exogenousVariable = 0.7; % Compute centile nless = sum(historicalDat...

etwa 11 Jahre vor | 2

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What is the restriction of using FFT ?
The points made apply to Fourier analysis in general, not specifically to the FFT, and amount to asking whether the model you ar...

etwa 11 Jahre vor | 1

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Please help, logical indexing of 3D matrices
One way, slightly fiddly but the simplest I can think of now: [rowsB, colsB] = find(B); C = zeros(size(B)); ind3 = 1;...

etwa 11 Jahre vor | 0

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Using ifft to Recover Cosine from Two Delta Impulses
There are a number of reasons for the differences: * You do not need to divide by |No| after either the forward or backward t...

etwa 11 Jahre vor | 1

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How to interpret Binary '0' and '1' as Decimal 0 and 1?
One way: cdec = c - '0';

etwa 11 Jahre vor | 1

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How can I read global variables?
The problem is not connected with your use of a global variable. I think there are two possibilities: * If you click in the f...

etwa 11 Jahre vor | 0

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Finding when data in a matrix exceeds a certain value
find(X > 0, 1)

etwa 11 Jahre vor | 0

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How to create large (multiline) text file in matlab?
Yes, see doc fprintf or look <http://uk.mathworks.com/help/matlab/ref/fprintf.html here>. Multiple lines are achieved us...

etwa 11 Jahre vor | 0

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Error using * Inner matrix dimensions must agree.
It's likely that this line y = x1k * x2k; should be y = x1k .* x2k; The * operator does matrix multiplication, b...

etwa 11 Jahre vor | 0

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what is the size of the matrix of an image.will it is different for color images.
See the documentation for the Image Processing Toolbox, for example <http://uk.mathworks.com/help/images/image-types-in-the-tool...

etwa 11 Jahre vor | 0

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function kmeans is not able to process uint8 what should i do?
Convert your date to double before passing it to kmeans. For example, if Xi is your uint8 data array, Xd = double(Xi); i...

etwa 11 Jahre vor | 0

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"load_image" function help.
I do not know why the author chose this particular image for his examples, but there is a discussion of it <http://en.wikipedia....

etwa 11 Jahre vor | 0

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watershed segmentation
Good questions, but it's not clear what the link to MATLAB is. Anyway, you could do worse than start with <http://en.wikipedia.o...

etwa 11 Jahre vor | 1

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interpolation data and FFT resolution
The frequency resolution is always 1/T, where T is the time from the start to the end of the time series. The resolution is inde...

etwa 11 Jahre vor | 4

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Why must a function in the methods block of a class have an input argument?
The method declaration needs to start function stiffnessk(obj) The argument it needs is the object for which it is being...

etwa 11 Jahre vor | 3

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CONVERT DNA SEQUENCE INTO COMPLEX NUMBER
values('ATCG') = [-1+1i 1-1i -1-1i 1+1i]; % mapping from characters to complex s = 'ATCGCGCGATATATCGCGCG'; % any sp...

etwa 11 Jahre vor | 0

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conv2() for gray images
I'm not sure why you are converting i3 to uint8 before passing it to imshow. Try imshow(i3, []); which automatically sca...

etwa 11 Jahre vor | 0

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Detcting irregular circles with different sizes
You could consider the Hough Transform. The best place to start is <http://uk.mathworks.com/help/images/ref/imfindcircles.html i...

etwa 11 Jahre vor | 0

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mapping numbers to another number
I don't see why switching case might be relevant to this problem. Put the numbers you want to map to into an array outpu...

etwa 11 Jahre vor | 2

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Repeat previous row if condition
% Parameters cycleLength = 4; % number of rows in a cycle indexMult = 10; % multiplier for index within cycle ...

etwa 11 Jahre vor | 0

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fft - Documentation Question - What is "L"?
It's the number of data points in the synthesised signal vector. It didn't come from anywhere - the person writing the documenta...

etwa 11 Jahre vor | 0

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How to go to a main function from sub-function if sub-function is recursive? "return" does not work here
If the recursive function is structured properly, returning from the final call when the termination condition is satisfied will...

etwa 11 Jahre vor | 1

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Hough Transform - Finding the center of the hough transform circles
If it helps at all, <http://uk.mathworks.com/matlabcentral/fileexchange/26978-hough-transform-for-circles my version> of the FEX...

etwa 11 Jahre vor | 0

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Combining cells so items occur randomly or pseudorandomly within a new array
% test data expitemorder = { 'Strong_Alt_Prime2.png' 'Strong_Alt_Target2.png' 'Strong_Alt_Prime1.png' ...

etwa 11 Jahre vor | 0

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starting indexing of an array at values greater than 1
All MATLAB arrays are indexed from 1, but an alternative to Stephen Cobeldick's answer is to make an array Ashifted such that t...

etwa 11 Jahre vor | 0

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