Nothing
burden.NullObject <- function(group, ref.level, data, formula){
if (!is.factor(group)) stop("'group' is not a factor")
if (is.numeric(ref.level)) ref.level <- as.character(ref.level)
if (!(ref.level %in% levels(group))) stop("'ref.level' is not a level of 'group'")
if (is.null(data)){
LogLik <- NULL
covar.toinclude <- NULL
data <- data.frame(ind.pheno = group) ; rownames(data) <- NULL
}else{
if(!is.matrix(data)) stop("'data' should be a matrix")
if(is.null(colnames(data))) colnames(data) <- sprintf("C%0*d", log10(ncol(data))+1, 1:ncol(data))
if (nrow(data) != length(group)) {stop("'data' has wrong dimensions")}
if (is.null(formula)){
covar.toinclude <- paste(colnames(data), collapse = "+")
my.formula <- as.formula(paste("ind.pheno ~ 0 |", covar.toinclude))
}else {
z <- as.character(formula)
if (z[1] != "~" | length(z) != 2) stop("'formula' should be a formula of the form \"~ var1 + var2\"")
covar.toinclude <- z[2]
my.formula <- as.formula(paste("ind.pheno ~ 0 |", z[2]))
}
##Creer data pour mlogit
data <- as.data.frame(data) ; rownames(data) <- NULL
data <- cbind(ind.pheno = group, data)
data.reg <- dfidx(data, varying = NULL, shape = "wide", choice = "ind.pheno")
##Faire tourner le modele
LogLik <- as.numeric(summary(mlogit(my.formula, data = data.reg, reflevel = ref.level))$logLik)
}
return(list(group = group, ref.level = ref.level, H0.LogLik = LogLik, covar.toinclude = covar.toinclude, data = data))
}
burden.NullObject.continuous <- function(pheno, data, formula){
if (!is.numeric(pheno)) stop("'pheno' should be a numeric vector")
if (is.null(data)){
LogLik <- NULL
covar.toinclude <- NULL
data <- data.frame(ind.pheno = pheno) ; rownames(data) <- NULL
}else{
if(!is.matrix(data)) stop("'data' should be a matrix")
if(is.null(colnames(data))) colnames(data) <- sprintf("C%0*d", log10(ncol(data))+1, 1:ncol(data))
if (nrow(data) != length(pheno)) {stop("'data' has wrong dimensions")}
if (is.null(formula)){
covar.toinclude <- paste(colnames(data), collapse = "+")
my.formula <- as.formula(paste("ind.pheno ~ ", covar.toinclude))
}else {
z <- as.character(formula)
if (z[1] != "~" | length(z) != 2) stop("'formula' should be a formula of the form \"~ var1 + var2\"")
covar.toinclude <- z[2]
my.formula <- as.formula(paste("ind.pheno ~ ", z[2]))
}
##Creer data pour regression
data <- as.data.frame(data) ; rownames(data) <- NULL
data <- cbind(ind.pheno = pheno, data)
##Get H0 LogLikelihood (for sub-scores)
LogLik <- as.numeric(logLik(lm(my.formula, data = data)))
}
return(list(pheno = pheno, H0.LogLik = LogLik, covar.toinclude = covar.toinclude, data = data))
}
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