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Add field to a double array?
My best guess is that someone is trying to restructure *obj.mu* that had a double array into one that has two fields instead. It...

8년 초과 전 | 0

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Uniformly Distribute numbers on for loop?
Here's the vectorized form: rng(0, 'Twister'); a = -1; b = 3; x = randi([a, b], 100, 1); y = (x.^3) - sin(...

8년 초과 전 | 1

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How to get values from an array using another logical array
Instead of A(B) try A.*B

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Compare and compile matching values from various data set.
First, do not label variables dynmically like data1, data2, data3, etc.. as this will make your function very complicated. In yo...

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Error due to using the same varname in mat file and matlab function
Try to load the variables into a structure to prevent "poofing" them into your workspace, which can cause issues with overriding...

8년 초과 전 | 1

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Remove elements of a cell array if length<200
Y = Y(cellfun(@(x) length(x) >= 200, Y))

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How can I get the RGB values separately for an image taken using a webcam?
R = 255, G = 255, B = 255 is the RGB color for white when the data is in uint8 format( 0 - 255 ) values. The website below shows...

8년 초과 전 | 0

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What is wrong with this code?
Here are some other comments about the code to help with readability, etc: Function dcm = dcm2vol(din) %<-- "function" mus...

8년 초과 전 | 2

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loadind data loop fastly?
Not sure if this is faster or not, but your code could be simplified a lot. If you have parallel computing toolbox, you could di...

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How to use find when some of the searches will not return a result?
A is a Mx3 matrix, but you are trying to access A as a MxNx3 matrix, ex: A( A(:,1)==Y(i,j), A(:,2)==X(i,j), 3) %A is not ...

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I have 12 matrices of 145x1.how to get 1740x1 matrix taking each values from the columns first
%======================================================================== %If you labeled your variables inconveniently lik...

8년 초과 전 | 0

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Error when using isempty in a while loop
One issue you'll find is that the |input| will error out for number inputs such as: "1 2 3 4". If you only want string inputs, u...

8년 초과 전 | 0

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How to change the style of the plot box outline without affecting axis style?
I can't seem to find a way to change the axes line color individually... Workaround would be to draw 3 axes and adjust the line ...

8년 초과 전 | 1

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Why is compiled parfor repeatedly trying to start a parallel pool?
Your compiled application (which is pre 2016a) has access to parallel processing and will use the default parallel setting, whic...

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How can I replicate elements of a vector of into another
v2 = [1 1 1 1 3 1 4]; vx = cellfun(@(x) repmat(x, 1, x), num2cell(v2), 'uniformoutput', false); v3 = [vx{:}]; v3 = ...

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Mirror x-axis of Image but not the x-axis of the plot over top of it?
Try flipping the data stored in |im| instead of the x/y axes direction. im.CData = flipud(im.CData) %To flip image across...

8년 초과 전 | 0

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How to display the elements of a matrix D as an input for the next matrix 729x729 rows and columns?
Maybe you can make your own data structure and get/set methods to access them by 6-tuple char: Tuple = fullfact([3 3 3 3 3 ...

8년 초과 전 | 0

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Problems with the function plot
NEW ANSWER Somehow, setting to opengl renderer after Matlab starts causes an issue. I could replicate the bug if I do |op...

8년 초과 전 | 3

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using textscan to separate columns by delimiter
Here's how to open a file separated by space. See example data.txt. FID = fopen(FileName, 'r'); %Open file to read, save th...

8년 초과 전 | 0

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Why does my image keep disappearing from my GUI when I try to create a free hand mask?
NEW ANSWER For some reason, your gui is not saving the "crackdetection" variable prior to the Masking callback function. Your...

8년 초과 전 | 1

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How can I convert matrix to cell array of strings?
You could use |sprintf|. mat = [1 2 3; 4 5 6 ; 7 8 9]; arr = cell(1, size(mat, 1)); for k = 1:numel(arr) arr{k}...

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Create 58 graphs as a waterfall plot from 58 .csv files
You should use plot3 instead of plot to draw line in 3D. More info here: <https://www.mathworks.com/help/matlab/ref/plot3.htm...

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Adding the elements of a field of a struct
To fix this, transpose column vector to row like this: output(activityNum).distanceininches = zDistance(startind:endind).';...

8년 초과 전 | 0

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transparent background for scatter plot
imagesc will use the colormap of the figure, so if you want to use a different color scheme for scatter, calculate out the rgb v...

8년 초과 전 | 0

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How do I store larger and smaller values in a matrix?
I'm guessing this is what you see: denum = 1.0e+014 * 0.0000 0.0000 1.0000 0.0000 0.0000 1.0...

8년 초과 전 | 0

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why do I have this error in index
You are accessing a matrix using a non-integer index right here, which is not allowed. Index must be an integer > 0. Another iss...

8년 초과 전 | 0

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Loop for this program
Looks like |d| is a vector. You can use a logical array |( d < 27 )| to find where in |d| is under 27, and then use this logical...

8년 초과 전 | 0

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Can anyone help in explaining how the below code is detecting rain streaks???
clc % clear command window clear all % clear all variables close all % close all figures I=imread('heavyrain.jpg...

8년 초과 전 | 0

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For Loop Output as a Vector
a = [0; 1; 0; -1]; p4 = zeros(1, 601); z = linspace(-3,3,601); %leave z as a matrix, instead of using it as a for loop co...

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Each time I write my code I get this error 'Subscript indices must either be real positive integers or logicals.'
The issue is you are accessing a matrix using a non-integer index. That's not allowed in MATLAB. t = 0:0.05:40 %this is n...

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