Results 1 to 10 of about 2,259,407 (341)

Principal components analysis of population admixture. [PDF]

open access: yesPLoS ONE, 2012
With the availability of high-density genotype information, principal components analysis (PCA) is now routinely used to detect and quantify the genetic structure of populations in both population genetics and genetic epidemiology.
Jianzhong Ma, Christopher I Amos
doaj   +3 more sources

Robust principal component analysis? [PDF]

open access: yesJournal of the ACM, 2009
This article is about a curious phenomenon. Suppose we have a data matrix, which is the superposition of a low-rank component and a sparse component. Can we recover each component individually?
E. Candès   +3 more
semanticscholar   +3 more sources

A genealogical interpretation of principal components analysis. [PDF]

open access: yesPLoS Genetics, 2009
Principal components analysis, PCA, is a statistical method commonly used in population genetics to identify structure in the distribution of genetic variation across geographical location and ethnic background. However, while the method is often used to
Gil McVean
doaj   +2 more sources

A practical introduction to EEG Time-Frequency Principal Components Analysis (TF-PCA) [PDF]

open access: yesDevelopmental Cognitive Neuroscience, 2022
This EEG methods tutorial provides both a conceptual and practical introduction to a promising data reduction approach for time-frequency representations of EEG data: Time-Frequency Principal Components Analysis (TF-PCA).
George A. Buzzell   +3 more
doaj   +2 more sources

Microglia Morphological Categorization in a Rat Model of Neuroinflammation by Hierarchical Cluster and Principal Components Analysis. [PDF]

open access: yesFront Cell Neurosci, 2017
It is known that microglia morphology and function are closely related, but only few studies have objectively described different morphological subtypes.
Fernández-Arjona MDM   +4 more
europepmc   +2 more sources

mbDenoise: microbiome data denoising using zero-inflated probabilistic principal components analysis [PDF]

open access: yesGenome Biology, 2022
The analysis of microbiome data has several technical challenges. In particular, count matrices contain a large proportion of zeros, some of which are biological, whereas others are technical.
Yanyan Zeng   +4 more
doaj   +2 more sources

Exploring body composition and physical condition profiles in relation to playing time in professional soccer: a principal components analysis and Gradient Boosting approach. [PDF]

open access: goldFront Physiol
Ulloa-Díaz D   +7 more
europepmc   +3 more sources

Principal Component Analysis

open access: yesTechnometrics, 2003
Principal component analysis is a versatile statistical method for reducing a cases-by-variables data table to its essential features, called principal components.
Michael Greenacre   +5 more
semanticscholar   +2 more sources

A multi-dimensional functional principal components analysis of EEG data. [PDF]

open access: yesBiometrics, 2017
Hasenstab K   +6 more
europepmc   +2 more sources

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