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leapp (version 1.3)

Latent Effect Adjustment After Primary Projection

Description

These functions take a gene expression value matrix, a primary covariate vector, an additional known covariates matrix. A two stage analysis is applied to counter the effects of latent variables on the rankings of hypotheses. The estimation and adjustment of latent effects are proposed by Sun, Zhang and Owen (2011). "leapp" is developed in the context of microarray experiments, but may be used as a general tool for high throughput data sets where dependence may be involved.

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Version

Install

install.packages('leapp')

Monthly Downloads

212

Version

1.3

License

GPL (>= 2)

Maintainer

Yunting Sun

Last Published

June 19th, 2022

Functions in leapp (1.3)

IPOD

Iterative penalized outlier detection algorithm
FindAUC

Compute the area under the ROC curve (AUC)
ROCplot

plot ROC curve
IPODFUN

compute the iterative penalized outlier detection given the noise standard deviation sigma
AlternateSVD

Alternating singular value decomposition
Pvalue

Calculate statistics and p-values
FindRec

compute the recall at given sizes of retrieved genes
FindFpr

Compute the false positive rate at given sizes of retrieved genes
FindTpr

compute the true positive rate at given sizes of retrieved genes
FindPrec

compute the precision at given sizes of retrieved genes
leapp-package

latent effect adjustment after primary projection
leapp

latent effect adjustment after primary projection
simdat

Simulated gene expression data affected by a group variable and an unobserved factor
ridge

Outlier detection with a ridge penalty