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Magic square (( please help))
result=2*magic(3) You have to look for any such possibility for odds too.For any random function or fixed values too, checking...

2 years ago | 0

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How to save the values of variables during each iteration(for loop) in a single variable?
If output is numeric use Array output=zero(1,total iteration); % Pre-allocate the variable for iter i=1:... output(i)=....Cal...

2 years ago | 1

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Answered
Can anyone check my code please?
Sufficints Hint: You can also do this in efficient way, I have shown work till D1 and D2, try the rest part yourself A1=randi(...

2 years ago | 0

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How can I extract the numbers divisible by 3 from the diagonal of a nxn matrix composed of random integers?
n=input('Choose the number of lines and columns of the square matrix: ') A=randi([100,1000], n, n) D=diag(A) mat=D(mod(D,3)==...

2 years ago | 1

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Answered
How do you write a function that imports data from an .xlsx file and saves the data as a .mat?
Load the data using readmatrix function https://in.mathworks.com/help/matlab/ref/readmatrix.html data_excel=readmatrix('file_...

2 years ago | 0

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Answered
change the color of the pixels that are present in an image
It can be done in multiple ways, use morphological operations or see the regionprops function (very useful). Easyest way for spe...

2 years ago | 0

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Exacting a constant range/window of values from a matrix (skipping one cell each time).
data=rand(1000,1); data(25:25:1000)=[]; temp=length(data)/24; cell_data=mat2cell(data,24*ones(1,temp))

2 years ago | 0

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Answered
Crop frames in video and apply it on other frames.
As per question you have already done video to frame splits let's consider im1 and im2 have same size images, rxcx3 unit 8 type....

2 years ago | 0

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Answered
How do I plot this series?
Change the upper bound value to any finite number f = symsum(an.*cos(100*n*pi*t) + bn.*sin(100*n*pi*t),n,1,100); %..............

2 years ago | 0

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Answered
How to set to zero specific elements of a 3D array?
Here if the voxel element is equal to 4, 5 & 50..so on. , all such voxels element will be replaced by 0 (Zero) data= % #3D Arra...

2 years ago | 0

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How can i get the points within a space defined by vectors (0,0,0), (2,4,1),(0,0,2),(-2,4,-1)?
po=[randi([-2,2]),randi([0,4]),randi([-1,2])]

2 years ago | 0

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How to calculate peak value and duration of signal in Image
There are many threds sillimar quaestions, calculate the FWHM and time duration of the signal, please refer https://in.mathwor...

2 years ago | 0

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How to store a color and location in a matrix?
#Easy way (Not Efficient too) test_image=imread('image_file_name.jpeg'); %Change the image file name with format [rows,clom,ch...

2 years ago | 0

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Finding unique closest point corresponding to latitude and longitude vectors for a given point with shortest distance.
#It can verify from plot too, pls modify as per requirments- PQ=[39.2591200000000 -85.9394200000000 39.2591300000000 ...

2 years ago | 0

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Answered
using kalman filter in medical images
Please refer the following link to study about Kalman Filter (MATLAB) https://in.mathworks.com/help/vision/ug/using-kalman-filt...

2 years ago | 0

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How to convert structure to gray image
Read the individual cell array data element, apply image function % cell_element=.... % image(cell_element) % axis off; You ...

2 years ago | 0

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Merge two arrays w/o for-loop. Speed-up
B1 = [52, 52, 52, 52] B2 = [0.437288188, 0.437288188, 0.437288188, 0.437288188] C=B1+B2

2 years ago | 0

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Answered
Using while loop in a video
vid=VideoReader('video.mp4'); frame_num=vid.NumFrames; frame_format='.jpg'; vid=read(vid); for i=1:frame_num %Initial Level:...

2 years ago | 0

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Answered
Write code to print ten columns of every number between 1 to 10
Read at MATLAB Docs randi function %Hint: data=randi([1,10],[1,10]) %random array-10 columns between 1 to 10 result=repelem(...

2 years ago | 0

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How to generate an array based on the values of another array?
A=[1 3;3 1;2 4;4 3] B=A; A(B==2)=4; A(B==1)=3; A(B==3)=2; A(B==4)=1; A

2 years ago | 0

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Answered
How to save multiple vector signals in one variable using wavelet Denoising?
F data can be store in cell array. F=cell(1,60); for i = 1:60; x = y(i,:) ; F{i}= wden(x,'rigrsure','s','mln',5,'d...

2 years ago | 0

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Answered
How to smooth and normalize noisy data
Please check the smoothdata Matlab function https://in.mathworks.com/help/matlab/ref/smoothdata.html it can smooth the data i...

2 years ago | 0

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What is the correct way to calculate the average dice score for multiple data in binary image segmentation?
Here>explanation with references https://stats.stackexchange.com/questions/550646/proper-way-to-calculate-mean-dice-coefficient...

2 years ago | 0

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Decode the cryptogram was encoded from 2x2 matrix
"but it keeps saying invalid in the inverse command and I can't figure why" >> X =[5 2; 25 11; -2 -7; -15 -15; 32 14; -8 -13; 3...

2 years ago | 0

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Answered
How to change maximum Index value in MATLAB
I re-read the question again- I want to find the maximum pixel (index) for example in above 55 is the maximum pixel (index) th...

2 years ago | 0

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Matlab Extracting X and Y coordinates
Concept wise: cross_index=find(data1==data2); This may not work, if there may floating numbers, in that case you may follow th...

2 years ago | 0

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About interpolation pressure & temperature
The are multiple ways to sort the structure fields data points- Procedure 1: b=load('Tempe.mat'); temp_data=sort(vertcat(b.T...

2 years ago | 0

Answered
I need help trying to write a code for a logistic map that requires a range of r between 0 and 5
Refer the following File Exchange FIle, it may be useful- https://in.mathworks.com/matlabcentral/fileexchange/32424-logistics-m...

2 years ago | 0

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Create x and y coordinates with available values
cor_xy=[randi(20),randi(30)]

2 years ago | 0

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Answered
get 2 set of random coordinates
x=0:20; % Or any Random Data y=0:30; % Or any Random Data cor_data=[x(randi(length(x))),y(randi(length(y)))]

2 years ago | 0

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