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Shoaibur Rahman


Baylor College of Medicine

Con actividad desde 2014

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

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Pregunta


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])...

más de 6 años hace | 0 respuestas | 0

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respuestas

Pregunta


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...

más de 6 años hace | 0 respuestas | 0

0

respuestas

Enviada


Exclude elements from array or matrix
Exclude elements from array, and rows or columns from matrix

casi 9 años hace | 2 descargas |

Enviada


Customize plot graphics
Set custom graphics to plot

casi 9 años hace | 1 descarga |

Enviada


Shuffle a vector for multiple times and concatenate them
Shuffle a vector for multiple times and concatenate them

casi 9 años hace | 1 descarga |

Enviada


Calculate R-squared value
Calculation of r-squred value

casi 9 años hace | 2 descargas |

Enviada


Vertical line on a figure
Vertical Line in Matlab

casi 9 años hace | 1 descarga |

Enviada


Horizontal line on a figure
Horizontal Line in Matlab

casi 9 años hace | 2 descargas |

Enviada


Find peaks (maxima and minima) of a function
This function detects the transition points (maxima and minima) in a function like y = f(x)

casi 9 años hace | 2 descargas |

Enviada


A single title on top of a subplot
Use this function to print a title on the top of a group of subplots

casi 9 años hace | 1 descarga |

Enviada


General Linear Regression Model
Generalized form of single and multivariate regression model (linear and non-linear)

casi 9 años hace | 1 descarga |

Pregunta


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...

más de 9 años hace | 1 respuesta | 0

1

respuesta

Pregunta


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 ...

más de 9 años hace | 2 respuestas | 0

2

respuestas

Respondida
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...

más de 9 años hace | 2

| aceptada

Respondida
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 ...

más de 9 años hace | 1

Resuelto


Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

más de 9 años hace

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

más de 9 años hace | 2

| aceptada

Respondida
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...

más de 9 años hace | 1

| aceptada

Respondida
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...

casi 10 años hace | 2

Respondida
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)

casi 10 años hace | 1

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

casi 10 años hace | 1

Respondida
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...

casi 10 años hace | 1

Respondida
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]

casi 10 años hace | 1

Respondida
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...

casi 10 años hace | 1

Respondida
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...

casi 10 años hace | 1

| aceptada

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

casi 10 años hace | 1

Respondida
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...

casi 10 años hace | 1

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

casi 10 años hace | 1

Respondida
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...

casi 10 años hace | 1

| aceptada

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

casi 10 años hace | 1

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