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Ass


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33 total contributions since 2019

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Question


How to transform time series into frequency dimain and obtain amplitude and phase
clc; clear all; load data.dat; time=0:2:3600; time=time'; nn_ss=data(1:1800,1:88); for jj=1:88 ss_nw = nn_ss(:,jj...

23 days ago | 1 answer | 0

1

answer

Question


how can determine phase from FFT
I have written a code, where I have matrix dimension 1801 by 88 and when i am running the code, phase is obtained. But in foor l...

28 days ago | 0 answers | 0

0

answers

Question


k-means clustering algorithm
I have a data with dimension 1801 by 88, to be clustered into k regions. Intially, all the centres are assigned randomly. the '...

29 days ago | 0 answers | 0

0

answers

Question


how to create struct array
I have struct array, in where the traces are having dimension 1801 by 88. I want to replace the thta traces with same dimension ...

1 month ago | 0 answers | 0

0

answers

Question


How to perform kmeans alogorithm through coding?
I am trying to denoise the image using moving k-menas algorithm in matlab code. The code I have wriiten is not working because s...

1 month ago | 0 answers | 0

0

answers

Question


how to do normalization of a matrix
I have a matrix wity dimension 100 by 50. Now i want to normalize the matrix by doing normaization of each column. I want to nor...

2 months ago | 1 answer | 0

1

answer

Question


How to creat ricker wavelet with specific sampling interval
I would like to know about ricker wavelet generation with sampling interval 0.001ms without using ricker functuion? please help ...

2 months ago | 0 answers | 0

0

answers

Question


How to find out index number bewteen two arrays
I have two matrices with different columns number and single row: A=[ 11.6 56.9 30.5 80 34 78.98 34.01 3 1.5] and B=[56...

4 months ago | 1 answer | 0

1

answer

Question


How to store values in matrix with similar index number of other matrix?
I have one matrix A=[1 2 1 3 3 2 2 1 3 ] and another matrix B=[72 24 67]. Now want to generate new matrix with the values i.e ...

5 months ago | 1 answer | 0

1

answer

Question


How to visualize Umatrix in SOM?
Hi, I am learning SOM for Umatrix representation. When I plot Umatrix, I am getting reverse representation of it. Higher color v...

6 months ago | 0 answers | 0

0

answers

Question


calculation of Umatrix in Self organising map
I am trying to calculate Umatrix to visualize the resulting SOM mapping by computing the distances between adjacent neuron by us...

6 months ago | 0 answers | 0

0

answers

Question


How to do average of different arrays of a matrix?
I have a matrix having dimension 3490 by 63 and I want make it 698 by 63 by taking average of five data points of different row ...

7 months ago | 2 answers | 0

2

answers

Question


hoe to estimate the coefficients from curve fitting?
I have 467 number of signal and each one is representing gaussian distribution. Matrix size is 63 by 467. I want to find out the...

1 year ago | 0 answers | 0

0

answers

Question


How to combine multiple curves to create one single curve or combining multiple curves to generate single average density curve
I have 92 types of curves those are similar types to one another. Now, I want to combine all 92 types of curves and calculate it...

1 year ago | 1 answer | 0

1

answer

Question


How to measure the similarity between two signal?
I have a matrix which contains 100 types of signal i.e. the dimension of the matrix is 30 by 100. I want to find out the similar...

1 year ago | 1 answer | 0

1

answer

Question


How to calculate average and density function of multiple curve?
I have multiple (mainly 5 types of curves) curves. And I want to calculate the average of same types of curves and take its dens...

1 year ago | 0 answers | 0

0

answers

Question


How to change color of any image or plotting to hsv color mode?
Actyally, I have the value of two principal components of data and the classes of the data sets and also colorvalue. Now I want...

1 year ago | 0 answers | 0

0

answers

Question


How can I represent a map with different with color value
I have 4 array, in which first one is depth value, 2nd one is classification, and the last three columns are color value. I want...

1 year ago | 1 answer | 0

1

answer

Answered
How to train data using SOM and map the resukts on data
It is not working properly. For I have simply calculated best matching unit after training which gives proper classification. An...

1 year ago | 0

Question


How to convert color value to color
I have a four array, where first one represent the classification (I have two classification: 1 and 2) and rest of the three are...

1 year ago | 0 answers | 0

0

answers

Question


How to campare index number of a matrix with other
I have two array. A=[ 9 8 5 4 4 10] and B=[1 1 1 3 3 3 2 2 1 1]. Now, I want to campare A and B. The index number of each elemen...

1 year ago | 2 answers | 0

2

answers

Question


How to train data using SOM and map the resukts on data
Pleases help me. I am stuck in how to train data using SOM and map the results on data. I am using the data file, having dimen...

1 year ago | 2 answers | 0

2

answers

Question


How to train data using self organising map?
I have a data with dimension 289 by 30. And I want to train the data using SOM to classify the data. How to classify the data us...

1 year ago | 0 answers | 0

0

answers

Question


How to reconstruct the image after applying SOM
I have applied SOM to classify the data and now I want to reconstruct my output image after classification. Now I have got three...

1 year ago | 0 answers | 0

0

answers

Question


How to generate manifold space for visualization of different features?
I want to visualize different features in 2D manifold space and 2D latent space.

1 year ago | 0 answers | 0

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answers

Question


How to visualize 2D map for different classes of data using SOM
I have used SOM usning somtoolbok and classify the into 3 different classes. I have got the U-matrix also. But, now I want to ma...

1 year ago | 0 answers | 0

0

answers

Question


how can I determine amplitude, phase and frequecy in FFT?
The signal I have attached like this. If I give the L value is equal to length of time, the value is 1501. But frequency matrix ...

1 year ago | 0 answers | 0

0

answers

Question


How to contour different cluster unit?
I have performed clustering algorithm (GMclustering), where I have got three different cluster units. But there only one contour...

1 year ago | 0 answers | 0

0

answers

Question


Gaussian mixture model clustering
How to GMM clustering for any type of datasets

1 year ago | 0 answers | 0

0

answers

Answered
How choose matrix size for u-matrix visualization in self organising map of data
I have a data with dimension 1135 by 30, where each oh row representing the amplitude distribution at aparticular depth. That me...

1 year ago | 0

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