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Can a program be written that can sort a set of words alphabetically?
Is this homework? Otherwise just use sort words = {'a' 'z' 'foo' 'bar' 'unsorted' 'help'} sort(words)

plus de 10 ans il y a | 0

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RGB color value of plotyy purple bars
Try get(b, 'EdgeColor') get(b, 'FaceColor') With Matlab R2012a, I get black bars and get [0 0 0] for EdgeColor and 'f...

plus de 10 ans il y a | 0

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what does A(ones(3,1),:)) do?
>> A = [1 2 3] A = 1 2 3 To select the first row of A, all columns (:) >> A(1,:) ans = 1 2 ...

plus de 10 ans il y a | 1

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In a specific range, finding the first value over a specific value and maximum value
It's not clear to me what you want. I've you want to enter vectors of different length and find the first value and the maximum,...

plus de 10 ans il y a | 0

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gather data from different sections of each column
You only need numelselect values of rows: B = randi(90,numselect,1); Then use for i = 1:numel(B), D(:,i) = A(B(i):B(i...

plus de 10 ans il y a | 1

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what does this error means-"Function definitions are not permitted at the prompt or in scripts."?
To define a function, create a new m-file on the command line >> edit myfun.m write your function in this file, first no...

plus de 10 ans il y a | 1

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Find Maximum Values of a 3 Dimensional Matrix
Reshape the pages of F into separate columns, determine the max for each column and use ind2sub to convert linear indices to sub...

plus de 10 ans il y a | 1

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I need to make a program that generates random numbers between 0 and 9999 for 5 seconds, and stops if the number 2015 is generated. I must use the etime and fix functions.
After I've replaced Disp with disp the program works fine. Another way to solve the task would be the following program; it uses...

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How can I designate an image which had been plot some points on to be an variable?
You can use the following function to draw a line in an image: function I = bresenham(p1, p2, I) %Draws a white line fro...

plus de 10 ans il y a | 0

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Reversing plot data to fit experimental to simualtion data
You can use fliplr and add some offset in y direction. data = fliplr(data) + yoffset;

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Print results using fprintf in required format
fprintf accepts only a single format string: for i = 1:numel(X), fprintf('The value of X%d = %0.1f\n',i, X(i)),end

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Display images in one figure
Use subplot: for i =1:Nimages I = ... % read ith image subplot(Nrows, Ncols, i), imshow(I) end

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Is there any way to make a plot without slopes? I want this plot to have only straight lines in both the x-direction and the y-direction.
help stairs

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how to find predefined values indices in a matrix?
arrayfun(@(x) ST(find(ST(:,2)==x, 1, 'last'), 3), unique(ST(:,2)))

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How can I convert a dicom image into tiff?
To convert to tiff (e.g., uint16 dicom to uint16 tif): I = dicomread('../../Downloads/CR-MONO1-10-chest'); imwrite(I, 'che...

plus de 10 ans il y a | 1

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Any way to use fplot to draw multiple curves in the same figure?
fplot(@(x)[tan(x),sin(x),cos(x)], 2*pi*[-1 1 -1 1])

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nested for loop keeping i constant through all, until end of j's
Use two for-loops: for i=1:4 fprintf('i = %d, j = ', i) for j = 1:4 fprintf('%d,', j) end fprint...

plus de 10 ans il y a | 0

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How can I avoid plotting zeros in data?
Sample data: y = zeros(1,100); y(1:10:100) = 1 + rand(1,10); plot(y) hold on Select only non-zero values for plotting...

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Finding all possible combinations of a matrix
val = 0:3; X = []; for i = val, for j= val, for k = val, for l = val, X = [X; [i,j,k,l]]; end, end, end, end or ...

plus de 10 ans il y a | 0

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How can I find the top 5% values' index in a 3D matrix
X = rand(10, 10, 3); % sample data [~, idx] = sort(X(:)); Linear indices: idxtop5perc = idx(end-5*numel(X)/100+1:end) ...

plus de 10 ans il y a | 0

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Error using plot, vectors must be of the same length
Use a loop to determine the chid and chi values for different t tall = t; for i=1:numel(tall) t = tall(i); ...

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Attempting to Crop binary image
The image contains some spurious white points, e.g. at (950,3). You can delete them using erosion se = strel('disk',1) e...

plus de 10 ans il y a | 0

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Undefined function or variable 'X'
In the example, a variable X is stored in mask.mat and bust.mat, that are assinged to X1 and X2, resp., after loading. If you do...

plus de 10 ans il y a | 2

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surf(Z) Z= 11x9 double produces a 10x8 surface
The full matrix is shown by surf. The numbers define the outer points of each patch: consider surf([1 2; 3 4]) that draw...

plus de 10 ans il y a | 0

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how to use 2d matrix to index into 3d matrix
Use linear indexing N = size(C,1)*size(C,2); idx = [1:N]+(ID(1:N)-1)*N; B = reshape(C(idx), size(C,1), size(C,2)); ...

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Neighbouring Gray Level Tone Dependence Matrix
Have a look at <http://stackoverflow.com/questions/25019840/neighboring-gray-level-dependence-matrix-ngldm-in-matlab>. It includ...

plus de 10 ans il y a | 0

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division of two matrices
bsxfun(@rdivide, A, B)

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Sort one set of data to correspond to another.
If b is an unsorted version of a, i.e., all elements in b occur once and only once in a, you can use [~, idx] = sort(b); ...

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How to copy every 500 rows to a new variable?
Why do you want to create 60 new variables and double the data? That's not a good idea. You can keep your original data and just...

plus de 10 ans il y a | 1

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why I get "out of memory" error when i use zeros(60000)?
You tried to allocate 60000*60000*8 = 28.8 GByte. That's seems to be too much for Matlab on your machine.

plus de 10 ans il y a | 2

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