Estimation_allmodels: Compute estimated effects

In mlmm.gwas: Pipeline for GWAS Using MLMM

Description

Estimate the effect of selected SNPs.

Usage

Estimation_allmodels(Y, selec_XXclass, KK, cofs = NULL, female = NULL,
  male = NULL)

Arguments

Y	A numeric named vector where the names are individuals names and the values their phenotype. The names of Y will be matched to the row names of X.
selec_XXclass	A n by mk data.frame of factors with rownames()=individual names, and colnames()=mk selected SNP names additive+dominance: three levels factor female+male+interaction: four levels factor Use function fromeBICtoEstimation to get this armument.
KK	a list of one, two or three matrices depending on the models - additive: a n by n matrix, where n=number of individuals, with rownames()=colnames()=individual names - additive+dominance: two n by n matrices, where n=number of individuals, with rownames()=colnames()=individual names - female+male: a n.female by n.female matrix, with rownames()=colnames()=female names and a n.male by n.male matrix, with rownames()=colnames()=male names - female+male+interaction: the same two matrices as the model female+male and a n by n matrix, where n=number of individuals, with rownames()=colnames()=individual names
cofs	A n by q matrix, where n=number of individuals, q=number of fixed effect, with rownames()=individual names and with column names, forbidden head of column names for this matrix "eff1_" and usage of special characters as "*","/","&"
female	A factor of levels female names and length n, only for the last two models
male	A factor of levels male names and length n, only for the last two models

Value

A dataframe with 3 colum: BLUE, Tukey.Class and Frequency. The firt line name is "mu", the names of the other lines are in the form markername_allele.

Examples

### Additive model ###
## Not run: 
data("mlmm.gwas.AD")

XX = list(Xa)
KK = list(K.add)

# GWAS
res_mlmm <- mlmm_allmodels(floweringDateAD, XX, KK)
manhattan.plot(res_mlmm)

# Model selection
sel_XX <- frommlmm_toebic(XX, res_mlmm)
res.eBIC <- eBIC_allmodels(floweringDateAD, sel_XX, KK, ncol(Xa))

# Effects estimations with the selected model
sel_XXclass <- fromeBICtoEstimation(sel_XX, res.eBIC)
eff.estimations <- Estimation_allmodels(floweringDateAD, sel_XXclass, KK)
genotypes.boxplot(Xa, floweringDateAD, effects = eff.estimations)

## End(Not run)

### Additive + dominance model
## Not run: 
data("mlmm.gwas.AD")

XX = list(Xa, Xd)
KK = list(K.add, K.dom)

# GWAS
res_mlmm <- mlmm_allmodels(floweringDateAD, XX, KK)
manhattan.plot(res_mlmm)

# Model selection
sel_XX <- frommlmm_toebic(XX, res_mlmm)
res.eBIC <- eBIC_allmodels(floweringDateAD, sel_XX, KK, ncol(Xa))
#the selected model is the null model

## End(Not run)


### Female+Male model
## Not run: 
data("mlmm.gwas.FMI")

XX = list(Xf, Xm)
KK = list(K.female, K.male)

# GWAS
res_mlmm <- mlmm_allmodels(floweringDateFMI, XX, KK, female = female, male = male)
manhattan.plot(res_mlmm)

# Model selection
sel_XX <- frommlmm_toebic(XX, res_mlmm)
res.eBIC <- eBIC_allmodels(floweringDateFMI, sel_XX, KK, ncol(Xf), female = female, male = male)
#the selected model is the null model

## End(Not run)



### Female+Male+Interaction model
## Not run: 
data("mlmm.gwas.FMI")

XX = list(Xf, Xm, Xfm)
KK = list(K.female, K.male, K.hybrid)

# GWAS
res_mlmm <- mlmm_allmodels(floweringDateFMI, XX, KK, female = female, male = male)
manhattan.plot(res_mlmm)

# Model selection
sel_XX <- frommlmm_toebic(XX, res_mlmm)
res.eBIC <- eBIC_allmodels(floweringDateFMI, sel_XX, KK, ncol(Xf), female = female, male = male)
#the selected model is the null model

## End(Not run)

mlmm.gwas documentation built on Aug. 5, 2019, 5:12 p.m.