photo

Shoaibur Rahman


Baylor College of Medicine

Actif depuis 2014

Followers: 0   Following: 0

Message

Specialities: Systems Neuroscience, Machine Learning, Data Science, Statistical Inference, Signal Processing, and Image Processing

Statistiques

All
  • 5-Star Galaxy Level 4
  • Personal Best Downloads Level 2
  • First Review
  • First Submission
  • 3 Month Streak
  • Thankful Level 1
  • Knowledgeable Level 4
  • First Answer
  • Solver

Afficher les badges

Feeds

Afficher par

Question


Frequency scaling of audio signals
I have an audio signal x[n], whose frequency varies over time. It's FT is X[k]. I want to reconstruct an audio signal (x_hat[n])...

plus de 6 ans il y a | 1 réponse | 0

0

réponse

Question


Inverse Fourier Transformation with a function in the exponent
I have a signal x[n] with it's Fourier Transform X[k]. I want a frequency-warped signal (x_warp[n]) by taking the inverse Fourie...

plus de 6 ans il y a | 1 réponse | 0

0

réponse

Question


Shuffling a vector for n times to generate a new vector
A is a vector. I want to shuffle its elements for n times to generate a new vector. For example: A = [3 5 1]; out = [Shu...

plus de 9 ans il y a | 1 réponse | 0

1

réponse

Question


Generating a long vector from two other vectors
I got stuck with a (may be) simple problem. Here are two vectors, like: a = [20 13 24 ...]; b = [3 2 4 ...]; How can ...

plus de 9 ans il y a | 2 réponses | 0

2

réponses

Réponse apportée
Receiving Matrix Dimensions Do Not Agree Error
Instead of Y use Y transpose as Y' in the last line of your code. X=inv(A)*Y' However if you use the following line inst...

plus de 9 ans il y a | 2

| A accepté

Réponse apportée
How to delete a row from a Financial Time Series?
This works here, delete rows 2 from 4: A = [1 2 3; 4 5 6; 7 8 9; 2 4 6; 1 3 5]; A(2:4,:)=[] When using your code, do ...

plus de 9 ans il y a | 1

Réponse apportée
About 3D surface plot
a = ...your 100 x 1 x 51 data; bb = squeeze(a); surf(bb)

plus de 9 ans il y a | 2

| A accepté

Réponse apportée
Bump --> How to change tick label fonts in Matlab figure
Here is an example on how you could use set function to accomplish your job. Delete any pairs of input arguments if not required...

plus de 9 ans il y a | 1

| A accepté

Réponse apportée
how to convert an image into bits???
It is not clear to me exactly what is your goal? Are you trying to convert image pixels into binary bits? If so, you can use dec...

plus de 9 ans il y a | 2

Réponse apportée
Save cubic spline coefficients to use as response in regression
pp = spline(x,y); NewValue = [1 2]; % may be scaler or vector out = ppval(pp,NewValue)

plus de 9 ans il y a | 1

Réponse apportée
Find a value with cell array.
A = your cell... out = A(cell2mat(A(:,1))==7,2)

plus de 9 ans il y a | 1

Réponse apportée
how to calculate a serie of a function with two variables
% xi eta x =[1 2;... 3 4;... 4 5;... 6 7]; y = sum(x) % only sum of all elements alon...

plus de 9 ans il y a | 1

Réponse apportée
How can I fill a matrix column with dta coming from another matrix according to index
A = [(1:9)' ones(9,1)]; B = [1 10; 2 10; 4 10; 7 10]; C = NaN(size(A,1),1); C(B(:,1)) = B(:,2); C = [A C]

presque 10 ans il y a | 1

Réponse apportée
how to find peaks in jpeg image
You can try with Mablab's findpeaks function, or see the attached code in file exchange: <http://www.mathworks.com/matlabcent...

presque 10 ans il y a | 1

Réponse apportée
I need to match following images
There are many sophisticated methods to do so. However, you can try with: out = ssim(TestImage,refImage) This computes t...

presque 10 ans il y a | 1

| A accepté

Réponse apportée
How to check two unbalanced matrix?
Another way may be: X=[1;2;3;4;5]; Y=[2]; Z = X(X==Y)

presque 10 ans il y a | 1

Réponse apportée
how to crop an image
I don't see any image attached. Anyway, you can try with: *roipoly* to select the image region and crop manually, or *imcrop...

presque 10 ans il y a | 1

Réponse apportée
how can i display a gray scale image instead of mapping 0,255 , between 0 , 127 ?
NewImage = 127*mat2gray(Image)

presque 10 ans il y a | 1

Réponse apportée
A simple fsolve problem from a MATLAB beginner
Define underwoodroot function separately, and call them from another m-file. In one m-file, write the following code, and sav...

presque 10 ans il y a | 1

| A accepté

Réponse apportée
How can convert a image from type of double(unit16) to a grayscale image?
ImageGray = mat2gray(ImageDouble);

presque 10 ans il y a | 1

Réponse apportée
how can i find a fuction which define input and output of a system?
Use: p = polyfit(x,y,n) % n is degree of polynomial, use a value that best fit your data To check the fitting: y_fi...

presque 10 ans il y a | 2

| A accepté

Réponse apportée
How to concatenate several matrices into one matrix?
Perhaps, you mistyped. It is C = [A; B] for different number of rows, but similar number of columns. Anyway, how your matrices a...

presque 10 ans il y a | 3

| A accepté

Réponse apportée
Multi level sorting and filtering
[~, ~, D] = xlsread('Multilevel_sorting.xlsx'); A = D(3:end,1:2); % your data in table 1 G = {'Group1','Group2','Gro...

presque 10 ans il y a | 1

Réponse apportée
Acceleration vs Time data into FFT
Define the number of DFT points N, and then perform the fft. N = pow2(nextpow2(length(signal))); y = fft(signal,N); ...

presque 10 ans il y a | 1

Réponse apportée
Recode strings in Cell array
indx = 0; for k = 1:size(codes,1) if strcmp(codes(k,1),'Home') && strcmp(codes(k,2),'5') indx = indx+1; ...

presque 10 ans il y a | 1

| A accepté

Réponse apportée
Solving system of nonlinear euations
syms x y [x,y] = vpasolve(x^2 + y^3 == 1, 2*x + 3*y == 4, x,y)

presque 10 ans il y a | 1

| A accepté

Réponse apportée
manually draw shapes (like using a pencil to draw on figure) on opened image
Try: roipoly

presque 10 ans il y a | 1

| A accepté

Réponse apportée
How Can I Assign variable Name?
x = 1:5; eval([datestr(date,'mmmm_dd_yyyy') '= x']); x is stored in a new variable named based on today's date. If you r...

presque 10 ans il y a | 1

Réponse apportée
Compound Poisson Distribution Model
I am not sure if I understand your question correctly. I guess once you get P, then you would like to choose its elements random...

presque 10 ans il y a | 1

| A accepté

Réponse apportée
How is this an exponential curve?
Convert your difference equation into differential equation: y(i+1) = y(i)-y(i)*h; y(i+1) - y(i) = -y(i)*h; (y(i+1) -...

presque 10 ans il y a | 1

| A accepté

Charger plus