Shoaibur Rahman
Baylor College of Medicine
Specialities: Systems Neuroscience, Machine Learning, Data Science, Statistical Inference, Signal Processing, and Image Processing
Statistics
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5 Questions
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Your submissions received 10 five star ratings
Awarded to Shoaibur Rahman on 13 Jun 2021
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Awarded to Shoaibur Rahman on 09 Oct 2019
Contribute at least one answer each month for 3 consecutive months
Awarded to Shoaibur Rahman on 20 Jul 2017
Accept 1 answer given by other contributors
Awarded to Shoaibur Rahman on 20 Jul 2017
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Provide your first answer ever to someone else's question
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Solve a problem for the first time
Awarded to Shoaibur Rahman on 18 Dec 2014
Content Feed
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])...
etwa 3 Jahre ago | 0 answers | 0
0
answersQuestion
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...
etwa 3 Jahre ago | 0 answers | 0
0
answersSubmitted
Exclude elements from array or matrix
Exclude elements from array, and rows or columns from matrix
mehr als 5 Jahre ago | 2 downloads |
Submitted
Shuffle a vector for multiple times and concatenate them
Shuffle a vector for multiple times and concatenate them
mehr als 5 Jahre ago | 1 download |
Submitted
Calculate R-squared value
Calculation of r-squred value
mehr als 5 Jahre ago | 30 downloads |
Submitted
Find peaks (maxima and minima) of a function
This function detects the transition points (maxima and minima) in a function like y = f(x)
mehr als 5 Jahre ago | 2 downloads |
Submitted
A single title on top of a subplot
Use this function to print a title on the top of a group of subplots
mehr als 5 Jahre ago | 3 downloads |
Submitted
General Linear Regression Model
Generalized form of single and multivariate regression model (linear and non-linear)
mehr als 5 Jahre ago | 2 downloads |
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...
mehr als 6 Jahre ago | 1 answer | 0
1
answerQuestion
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 ...
mehr als 6 Jahre ago | 2 answers | 0
2
answersReceiving 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...
mehr als 6 Jahre ago | 2
| accepted
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 ...
mehr als 6 Jahre ago | 1
Solved
Determine if input is odd
Given the input n, return true if n is odd or false if n is even.
mehr als 6 Jahre ago
About 3D surface plot
a = ...your 100 x 1 x 51 data; bb = squeeze(a); surf(bb)
mehr als 6 Jahre ago | 2
| accepted
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...
mehr als 6 Jahre ago | 1
| accepted
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...
mehr als 6 Jahre ago | 2
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)
mehr als 6 Jahre ago | 1
Find a value with cell array.
A = your cell... out = A(cell2mat(A(:,1))==7,2)
mehr als 6 Jahre ago | 1
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...
mehr als 6 Jahre ago | 1
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]
mehr als 6 Jahre ago | 1
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...
mehr als 6 Jahre ago | 1
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...
mehr als 6 Jahre ago | 1
| accepted
How to check two unbalanced matrix?
Another way may be: X=[1;2;3;4;5]; Y=[2]; Z = X(X==Y)
fast 7 Jahre ago | 1
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...
fast 7 Jahre ago | 1
how can i display a gray scale image instead of mapping 0,255 , between 0 , 127 ?
NewImage = 127*mat2gray(Image)
fast 7 Jahre ago | 1
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...
fast 7 Jahre ago | 1
| accepted
How can convert a image from type of double(unit16) to a grayscale image?
ImageGray = mat2gray(ImageDouble);
fast 7 Jahre ago | 1
