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Is there an clustering algorithm with which I can declare expected centroid in advance?
The <https://it.mathworks.com/help/stats/kmeans.html k-means clustering> is what you need. You can start the algorithm by select...

7年以上前 | 0

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Creatig a matrix from variables in workspace
How did you get these variables? It is not good practice to handle workspace variables after their definition. Better saving...

7年以上前 | 1

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how to save values in variable from loop
Save vector |a| before printing: a = 1:10; for k=a fprintf('%d\n',k); end a Outputs: 1 2 .... ...

7年以上前 | 0

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how can i solve this equation on matlab?
<https://it.mathworks.com/help/matlab/ref/ode45.html>

7年以上前 | 0

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Legend horizontal orientation doesn't work when extracting icon handles
As far as I know the syntax |[lgd,icons,plots,txt] = legend(..)| is not reccomended. Notice in fact that by simply calling |icon...

7年以上前 | 2

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How to make a road lane for a synthetic image in gray scale?
Here it is: %create one element Z = zeros(100,101); %lateral lanes Z(:,[11:15,87:91]) = 1; %mid lane (dashed) ...

7年以上前 | 1

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Finding real roots of a cubic equation
To force the |vpasolve| finding only real solutions you cannot use |assume|. If you know the real solution is only one a workaro...

7年以上前 | 0

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How do I remove/replace border pixels from my image?
You basically don't need your |interior_blackPixels|. Indeed, your expected image is obtained by simply setting |outer_blackPixe...

7年以上前 | 0

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Custom Dendrogram Ordering Implementation
Apparently, none of the available functionalities of |optimalleaforder| does the work. So here it is a function that runs throug...

7年以上前 | 0

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Find the x value from a specific iteration of fmincon
From the help page about Output Functions <https://it.mathworks.com/help/matlab/math/output-functions.html Output Functions> you...

7年以上前 | 0

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Setting Viewpoint with Azimuth, Elevation, and distance
Hi Viet, in order to control visualization in the current axes, consider these parameters also: CameraPosition CameraPos...

7年以上前 | 1

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How to plot a function file
Given a vector |y| of dice outcomes, plot the stairwise graph like this: y = [0,3,5,9,2]; X = [0,repelem(1:length(y)-1,2...

7年以上前 | 0

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Boundary function fails, R2016b
Hi Jukka, if you look at the plot of the boundary without superimposing it to the circles you can see (see first image below) th...

7年以上前 | 1

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FFT Convolution on Wav File
Is your audio file |x| (loaded with |[x Fs]=audioread('drums.wav');| ) stereo? Because in this case the line X = fft( [x ; ...

7年以上前 | 0

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obtain cluster label on data
If you applied |kmeans| function like this: idx = kmeans(X,k) then |idx| is the vector containing the labels.

7年以上前 | 0

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K-means: see the initial centroids
Yes it is possible. |kmeans| allows you to set option parameters via the |statset| function. In the help page <https://it.m...

7年以上前 | 1

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Problem Fitting data to 3 Gaussians
More efficient using built-in code to fit Guassian distributions. Try look at this function which allows you to choose the numbe...

7年以上前 | 0

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How do I put minor ticklabel on and ticklabel off ?
One solution can be to set y-limits to larger values, and then force the labels to be the original ones. This way, the labels wi...

7年以上前 | 0

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How to map the values from 0-320 to 0-29
Just multiply your values by 29/320; k = 29/320; %generate some random numbers between 0 and 320 x = 320*rand(5); ...

7年以上前 | 0

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Normal Distribution Probability Finder
pp = makedist('Normal','mu',0,'sigma',1); yourP = 1-cdf(pp,-2.125)

7年以上前 | 4

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Matrix multiplication with logical values error
For logical matrices matrix multiplication doesn't apply (because it is not logical operation). To get your Dyadic product, cas...

7年以上前 | 0

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How do i fill a matrix from smaller matrices?
It seems from you code that your blocks are stored in a cell array of size 32x32 called |dcts|. If it is so, and each block is 8...

7年以上前 | 0

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Is it possible getting x coördinates from an accelerometer measurement?
It seems you need to threshold the values of XYZ (that I think is a vector). Fore example, fix a thereshold to T=1 (or some that...

7年以上前 | 0

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How to remove the horizontal streamline when plotting contour using atan2? Streamline plotting help
Why they shouldn't be there? They SHOULD be there. This is the plot of the atan2 function: <</matlabcentral/answers/uploaded_...

7年以上前 | 0

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How do I create bin widths using a simple algebra function?
*IMPORTANT: there is no need to use find!!!* *EXPLOIT MATLAB LOGICAL INDEXING* To replace "time<5" with "5<time<10" just u...

7年以上前 | 1

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How to transpose a block matrix
Use cells, transpose them. C={[1,1;1,1],[2,2;2,2];[3,3;3,3],[5,5;5,5]}; D=C'; %to get matrices out of cells cell2m...

7年以上前 | 0

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how to change cursor to hour glass
For hour glass see this post: <https://it.mathworks.com/matlabcentral/newsreader/view_thread/32972> Otherwise, consider al...

7年以上前 | 0

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Playing sound one after another, according to number inputed
Just compute the time T (secs) the file lasts by using sample rate information and number of samples. Then, pause the for loop f...

7年以上前 | 1

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Determinant and inverse of a 3 X 3 matrix Issue
You are getting this error because in your function invanddet3by3(A) there is NO CALL to function invanddet2by2sol(...

7年以上前 | 0

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How to differentiate one list with respect to another?
Explain better what do you mean by "differentiate one list w.r.t. one another". If for a=[1,2,3,4,5] b=[10,11,12,13,...

7年以上前 | 0