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Shoaibur Rahman

Baylor College of Medicine

Aktiv seit 2014

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

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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])...

mehr als 5 Jahre vor | 0 Antworten | 0

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Frage

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...

mehr als 5 Jahre vor | 0 Antworten | 0

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Gesendet

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

etwa 8 Jahre vor | 4 Downloads |

Gesendet

Customize plot graphics
Set custom graphics to plot

etwa 8 Jahre vor | 1 Download |

Gesendet

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

etwa 8 Jahre vor | 1 Download |

Gesendet

Calculate R-squared value
Calculation of r-squred value

etwa 8 Jahre vor | 1 Download |

Gesendet

Vertical line on a figure
Vertical Line in Matlab

etwa 8 Jahre vor | 1 Download |

Gesendet

Horizontal line on a figure
Horizontal Line in Matlab

etwa 8 Jahre vor | 2 Downloads |

Gesendet

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

etwa 8 Jahre vor | 1 Download |

Gesendet

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

etwa 8 Jahre vor | 1 Download |

Gesendet

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

etwa 8 Jahre vor | 1 Download |

Frage

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...

fast 9 Jahre vor | 1 Antwort | 0

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Frage

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 ...

fast 9 Jahre vor | 2 Antworten | 0

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Antworten

Beantwortet
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...

etwa 9 Jahre vor | 2

| akzeptiert

Beantwortet
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 ...

etwa 9 Jahre vor | 1

Gelöst

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

etwa 9 Jahre vor

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

etwa 9 Jahre vor | 2

| akzeptiert

Beantwortet
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...

etwa 9 Jahre vor | 1

| akzeptiert

Beantwortet
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...

etwa 9 Jahre vor | 2

Beantwortet
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)

etwa 9 Jahre vor | 1

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

etwa 9 Jahre vor | 1

Beantwortet
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...

etwa 9 Jahre vor | 1

Beantwortet
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]

etwa 9 Jahre vor | 1

Beantwortet
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...

etwa 9 Jahre vor | 1

Beantwortet
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...

etwa 9 Jahre vor | 1

| akzeptiert

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

etwa 9 Jahre vor | 1

Beantwortet
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...

etwa 9 Jahre vor | 1

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

etwa 9 Jahre vor | 1

Beantwortet
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...

mehr als 9 Jahre vor | 1

| akzeptiert

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

mehr als 9 Jahre vor | 1