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Ass


Last seen: 18 days ago
44 total contributions since 2019

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Question


how to fit a signal using polynomial fit with hogher order?
I have a amplitude value with time period of a signal. I am trying to fit this signal by polynomial fitting. I have attached the...

2 months ago | 1 answer | 0

1

answer

Question


How to arrange the values of the matrix according to index number?
I have index number of matrix A =[1 3 5 6], B= [ 2 4]. The values corresponding to index number matrix A is A1=[3 4 -7 5; 2 5 1...

2 months ago | 2 answers | 0

2

answers

Question


How to find out the minimum error and its index number by comparing two coulmns of matrices?
I have 22 number of traces (sig1 & sig2 ) in two matrices. I have calculated two error matrices E1 (1 by 22) and E2 (1 by 22) fo...

2 months ago | 1 answer | 0

1

answer

Question


Initialization of centroid for kmeans++ algorithm
I have applied simple kmeans algorithm for clustering of the datasets, which has dimension 1800 by 3. Now instead of kmeans, I w...

2 months ago | 1 answer | 0

1

answer

Question


array dimensions must match in binary op
I am trying to perform this code 3D data but I am getting this error " array dimensions must match in binary op". To solve this ...

2 months ago | 0 answers | 0

0

answers

Question


how to solve the array index problem in kmeans clustering for three dimensional data?
I have used a with dimension 100 by 3 of 10 signals for kmeans clustering. So, I have used it as a three dimensional dataset of ...

2 months ago | 0 answers | 0

0

answers

Question


how to find out the index with its value from cell arrays?
I have two cell arrays. In one cell, there is a value of the matrices with dimension 100 by 10 and other cell there is row and c...

2 months ago | 0 answers | 0

0

answers

Question


how to store the matrix value in cell array?
I have matrix C=100 by 10 and I want to store the values of matrix in cell array. The code is not working. Please help me on th...

2 months ago | 1 answer | 0

1

answer

Question


How to find out the index number of particular value from three dimensional matrices
A(:,:,1)= [1 0 0 0 1 0 1 0 1] A(:,:,2)= [1 1 0 1...

2 months ago | 1 answer | 0

1

answer

Question


How to compute weighted probability for nitialization of centers using kmeans++? How kmeans++ is differ from kmeans?
load dara1.dat; nc=4; niters=100; [r,col]=size(data1); p=randperm(r); p=p(1:nc); c=data1(p,:); id=eye(nc); for n=1:niter...

3 months ago | 0 answers | 0

0

answers

Question


how to specify the particular column numbers of a matrix in for loop
I have a matrix withy dimension 1801 by 88. I want to select the column number 70:75 in for loop for analysis. If I start with ...

4 months ago | 1 answer | 0

1

answer

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...

5 months 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...

5 months 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 '...

5 months 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 ...

5 months 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...

5 months 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...

6 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 ...

6 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...

8 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 ...

9 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...

10 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...

10 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 ...

11 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

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