photo

Hossam Selim


Active since 2014

Followers: 0   Following: 0

Message

Statistics

  • First Answer
  • Thankful Level 1

View badges

Feeds

View by

Question


3D data clustering using DBSCAN or equivalent approach
Hi friends, I have a huge amount of data that are distributed in 3D space (X,Y,Z) and I need to make clustering similar to that ...

meer dan 6 jaar ago | 0 answers | 0

0

answers

Question


intersections of all combinations of pairs of matrices in 3D array
Hello, I have a 3D array "array_ellipsoid" of size(40000,3,5000). this array represents 5000 ellipsoids that intersect in 3D sp...

meer dan 6 jaar ago | 0 answers | 0

0

answers

Question


change x,y,z axes position in a 3d plot graph
Good Evening, I need to change position of axes in a 3d graph. I tried to do that using graph properties but it does not wor...

meer dan 6 jaar ago | 6 answers | 3

6

answers

Answered
How to plot 3D ?
Hi, what you are doing now is you apply the math to respective elements. however, in order to apply the math for all the combina...

bijna 7 jaar ago | 0

Question


find inter-related intersection between multiple 2D matrix plots (5000 matrices)
Hello dear friends, I am having mutliple 2D plots of curves (5000 2D curves) saved as 2D matrices (5000 matrices). I need a fun...

bijna 7 jaar ago | 0 answers | 0

0

answers

Question


segregate various elements of a matrix into separate groups based on their close proximity
Hello, I have a 2D matrix that I have created from filtering a contour map of an image and I created a regional maxima of the fi...

bijna 7 jaar ago | 1 answer | 0

1

answer

Question


avoid nested for loop in this code to reduce processing time
Hello, I am trying to create a code to do some calculations that requires 6 nested FOR loops. this requires too much processin...

meer dan 7 jaar ago | 0 answers | 0

0

answers

Question


wavelet decomposition function working at exact levels only
Hello, is there a matlab function like "wavedec" that works only to decompose the signal at eaxct levels and discard the other ...

meer dan 9 jaar ago | 0 answers | 0

0

answers

Answered
problem finding minimum of residual for separable nonlinear least square using fminsearch
Thanks a lot for ur fedback. I am having only one nonlinear unknown. I will use your code and I hope it solves my issue I cho...

bijna 10 jaar ago | 0

Question


problem finding minimum of residual for separable nonlinear least square using fminsearch
Dear All, I have some ultrasonic signal that I created wavelet transform for. I am trying to do separable nonlinear least squa...

bijna 10 jaar ago | 3 answers | 0

3

answers

Question


estimate damping factor of waveform
Gents, I have got some waveforms in time domain out of oscilloscope. each waveform has different shapes and frequency contents...

ongeveer 10 jaar ago | 0 answers | 0

0

answers