I am working with MatLab R2017a, I have to implement EM clustering. But I am stuck with initialization of covariance in it. I have to calculate covariance using the dataset which is comprised of 123x5 matrix. Kindly guide me
Related to your query, I suggest you follow https://www.jmlr.org/papers/volume6/banerjee05a/banerjee05a.pdf and https://arxiv.org/pdf/1605.00316.pdf
If X is your data matrix then inv(X'X) is the covariance matrix. X' is the transpose of X.. Best wishes, David Booth
Dear Tariq Sm ,
Look the link, maybe helpful for you.
https://courses.cs.washington.edu/courses/cse446/16sp/week_8_clustering_2.pdf
Regards,
Shafagat
I am currently working on validating land subsidence results obtained using SBAS InSAR. Could anyone suggest reliable sources or repositories where I can download a historical DEM from 2018?...
31 July 2024 9,757 3 View
I have calculated CDI (inhalation) of Ozone, CO, SO2, NO2, NO, and TSP (total suspended particulate matter) . However I cannot find RfC (Reference concentration) or even NOAEL of any of these...
27 June 2024 4,488 0 View
Hi, My name is Muhammad Afnan Tariq. I'm 6th semester student at university in pakistan and currently enrolled in BBA Program. I want to write a thesis as fyp. I have interest in Marketing and...
23 June 2024 9,160 3 View
Is the Moderator variable different from the mediating variable?
11 June 2024 7,855 3 View
I mean in surface, evapotranspiration and groundwater interaction
04 June 2024 9,478 0 View
differences in physiological traits of wild and domesticated (controlled/Lab Reared) black soldier fly
04 May 2024 173 0 View
Hi Everyone H am working on damask to run the simulation for phenomenological crystal plasticity spectral solver. Actually one problem i am facing regarding the convergence criteria in damask, i...
22 April 2024 8,179 0 View
Clarify a point for Multiepitope vaccine construction that 1) one should construct 3D structure of MEV with protein adjuvant sequence (A.A) or without it. 2)3D structure refinement, validation,...
06 April 2024 9,893 2 View
what is the procedure of synthesis of nanomaterial -Bottom-up -Chemical Etching? Advantage and disadvantagesAdvantages of this technique?
04 April 2024 2,522 2 View
I have a plasmid with kanamycine antibiotic resistant gene and Bar as a marker gene. I need to transfer this plasmid into AGL-1 strain of agrobacterium tumefaciens. I faced a problem when I follow...
26 March 2024 3,893 4 View
I would like to learn more about SPSS and Its application especially in regards to data analysis. Please suggest me how I can learn more about it. Thank you so much.
11 August 2024 9,101 4 View
I have reverse sequences (AB1 format), can I base on reverse DNA sequences to perform nucleotide alignment, convert nucleotides to amino acids and deposit the sequence in GenBank database?
11 August 2024 5,138 1 View
Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!
11 August 2024 3,770 4 View
Willett, Shenoy et al. (2021) have developed a brain computer interface (BCI) that used neural signal collected from the hand area of the motor cortex (area M1) of a paralyzed patient. The...
10 August 2024 7,180 0 View
I'm currently exploring the application of Python in textile engineering, specifically in areas like data analysis, process automation, and the development of smart textiles. I'm interested in...
10 August 2024 7,429 2 View
How can I use the cif data obtained from rietveld refinement extracted via gsas2, for microstructural analysis using ETEX software?
09 August 2024 7,718 0 View
Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...
07 August 2024 1,937 1 View
A fungal strain was treated with nanoparticles. We want to do an environmental SEM analysis. So could anyone share your views on preparing the sample? Thank you.
07 August 2024 5,307 1 View
Hi, I have a question about normalizing the MTT OD values for doing the statistical analysis. So, if we have 3 different plates and we call them 3 different replicates, so, first we would...
07 August 2024 8,106 4 View
Hi! So i attempted to understand a novel protein behavior towards heat application by analyzing its secondary structure change. I subjected the protein to a thermal denaturation analysis using...
06 August 2024 1,989 3 View