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#'@title Trains the algorithm to select the edges that maximize the entropy
#'@name training
#'
#'@description A function that trains the algorithm to select the edges that
#'maximize the entropy
#'
#'@param mRNA Directory where the file .FASTA lies with the mRNA sequences
#'@param lncRNA Directory where the file .FASTA lies with the lncRNA sequences
#'@param sncRNA Directory where the file .FASTA lies with the sncRNA sequences
#' (optional)
#'
#'@return Returns the edge lists and the 'curveofentropy' function inputs
#'@author Murilo Montanini Breve
#'
#'@importFrom Biostrings readBStringSet
#'@import igraph
#'@import randomForest
#'@importFrom graphics abline axis legend text
#'@importFrom stats sd
#'@importFrom utils write.csv2
#'@export
training <- function(mRNA, lncRNA, sncRNA = NULL) {
MRNA <- readBStringSet(mRNA)
LNCRNA <- readBStringSet(lncRNA)
if (length(sncRNA)) {
SNCRNA <- readBStringSet(sncRNA)
}
vectorm <- NULL
vectorlnc <- NULL
vectorsnc <- NULL
edgeslistmrna <- NULL
edgeslistlncrna <- NULL
edgeslistsncrna <- NULL
mRNAmatrixEdges <- NULL
lncRNAmatrixEdges <- NULL
sncRNAmatrixEdges <- NULL
MAXsnc <- NULL
for (t in seq_len(3)) {
if (t == 1) {
message("[INFO] Analyzing mRNA:")
seq <- c(MRNA)
}
if (t == 2) {
message("[INFO] Analyzing lncRNA:")
seq <- c(LNCRNA)
}
if (t == 3) {
if (length(sncRNA)) {
message("[INFO] Analyzing sncRNA:")
seq <- c(SNCRNA)
} else
break
}
for (u in seq_along(seq)) {
sequence <- strsplit(toString(seq[u]), split = '')
sequence <- sequence[[1]]
aux <- ""
index <- 1
position <- 0
cont <- length(sequence)
comma <- 0
x <- 0
k <- 1
vector <- c()
if (t == 1)
edgeslistmrna[[u]] <- createedges(sequence)
if (t == 2)
edgeslistlncrna[[u]] <- createedges(sequence)
if (t == 3)
edgeslistsncrna[[u]] <- createedges(sequence)
message(u)
}
}
for (f in seq_along(edgeslistmrna)) {
vectorm <- c(vectorm, edgeslistmrna[[f]])
}
for (f in seq_along(edgeslistlncrna)) {
vectorlnc <- c(vectorlnc, edgeslistlncrna[[f]])
}
if (length(sncRNA)) {
for (f in seq_along(edgeslistsncrna)) {
vectorsnc <- c(vectorsnc, edgeslistsncrna[[f]])
}
}
netm <- graph(edges = vectorm, directed = FALSE)
netl <- graph(edges = vectorlnc, directed = FALSE)
matrizm <- as_adjacency_matrix(netm)
datam <- as.matrix(matrizm)
matrizl <- as_adjacency_matrix(netl)
datal <- as.matrix(matrizl)
datam <- datam[order(rownames(datam)), order(colnames(datam))]
datal <- datal[order(rownames(datal)), order(colnames(datal))]
message("[INFO] Analyzing entropy")
MAXm <- maxentropy(datam)
MAXlnc <- maxentropy(datal)
if (length(sncRNA)) {
nets <- graph(edges = vectorsnc, directed = FALSE)
matrizs <- as_adjacency_matrix(nets)
datas <- as.matrix(matrizs)
MAXsnc <- maxentropy(datas)
sncRNAmatrixEdges <- selectingEdges(MAXsnc, datas)
}
message("[INFO] Selecting the edges by the maximum entropy method")
mRNAmatrixEdges <- selectingEdges(MAXm, datam)
lncRNAmatrixEdges <- selectingEdges(MAXlnc, datal)
listMatrix <- list(mRNAmatrixEdges,
lncRNAmatrixEdges,
sncRNAmatrixEdges,
MAXm,
MAXlnc,
MAXsnc)
return(listMatrix)
}
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