#' create_2x2_links
#'
#' Calculate ribbons for 2 comparisons with 2 conditions
#' @export
create_2x2_links = function(){
a.1.3 = intersect(gene_list[[1]][,1], gene_list[[3]][,1])
a.1.4 = intersect(gene_list[[1]][,1], gene_list[[4]][,1])
a.2.3 = intersect(gene_list[[2]][,1], gene_list[[3]][,1])
a.2.4 = intersect(gene_list[[2]][,1], gene_list[[4]][,1])
a.1.u = setdiff(gene_list[[1]][,1], c(a.1.3, a.1.4))
a.2.u = setdiff(gene_list[[2]][,1], c(a.2.3, a.2.4))
a.3.u = setdiff(gene_list[[3]][,1], c(a.1.3, a.2.3))
a.4.u = setdiff(gene_list[[4]][,1], c(a.1.4, a.2.4))
ribbonlist = list(list(a.1.4, a.1.3, a.1.u),
list(a.2.4, a.2.3, a.2.u),
list(a.2.3, a.1.3, a.3.u),
list(a.2.4, a.1.4, a.4.u))
a.1.cg = sum(lengths(ribbonlist[[1]][1:2]))
a.2.cg = sum(lengths(ribbonlist[[2]][1:2]))
a.3.cg = sum(lengths(ribbonlist[[3]][1:2]))
a.4.cg = sum(lengths(ribbonlist[[4]][1:2]))
r.t = function(x){return(as.numeric(lengths(x) != 0))} # calulates if there are any links present requiring ribbons
a.1.r = sum(r.t(ribbonlist[[1]])[1:2])
a.2.r = sum(r.t(ribbonlist[[2]])[1:2])
a.3.r = sum(r.t(ribbonlist[[3]])[1:2])
a.4.r = sum(r.t(ribbonlist[[4]])[1:2])
spacing.table = data.frame(Chrsize = .chr_length,
crossgenes = c(a.1.cg, a.2.cg, a.3.cg, a.4.cg),
ribbons = c(a.1.r, a.2.r, a.3.r, a.4.r))
spacing.table$ribbon.gap = floor((spacing.table$Chrsize - spacing.table$crossgenes)
/ (spacing.table$ribbons))
NoGapKaryotype = .karyotype[c(2,3,5,6),]
chr.coordinates = list()
for(i in 1:(.Comparison * .Condition)){
dat = data.frame(chr = character(), start = integer(), end = integer(), ribbon = integer(),
stringsAsFactors=FALSE)
start = NoGapKaryotype[i,5]
for (k in 1:.Condition){
dat[k,1] = sheet_list[i]
dat[k,2] = start
dat[k,3] = start + length(ribbonlist[[i]][[k]])
dat[k,4] = r.t(ribbonlist[[i]])[k]
start = dat[k,3]
if (dat[k,4] == 1){start = start + spacing.table[i,4]}
#cat(paste(dat[k,1], dat[k,2], dat[k,3], dat[k,4], (dat[k,3]-dat[k,2]), "\n", sep="\t"))
}
chr.coordinates[[i]] = dat
}
sink(file = "data/Ribbon1.txt")
if(chr.coordinates[[1]][1,4] == 1){
cat(paste(chr.coordinates[[1]][1,1], chr.coordinates[[1]][1,2], chr.coordinates[[1]][1,3],
chr.coordinates[[4]][2,1], chr.coordinates[[4]][2,2], chr.coordinates[[4]][2,3],
"\n", sep = "\t"))}
if(chr.coordinates[[1]][2,4] == 1){
cat(paste(chr.coordinates[[1]][2,1], chr.coordinates[[1]][2,2], chr.coordinates[[1]][2,3],
chr.coordinates[[3]][2,1], chr.coordinates[[3]][2,2], chr.coordinates[[3]][2,3],
"\n", sep = "\t"))}
if(chr.coordinates[[1]][1,4] == 1){
cat(paste(chr.coordinates[[2]][1,1], chr.coordinates[[2]][1,2], chr.coordinates[[2]][1,3],
chr.coordinates[[4]][2,1], chr.coordinates[[4]][2,2], chr.coordinates[[4]][2,3],
"\n", sep = "\t"))}
if(chr.coordinates[[1]][2,4] == 1){
cat(paste(chr.coordinates[[2]][2,1], chr.coordinates[[2]][2,2], chr.coordinates[[2]][2,3],
chr.coordinates[[3]][2,1], chr.coordinates[[3]][2,2], chr.coordinates[[3]][2,3],
"\n", sep = "\t"))}
sink(NULL)
ribbonsizes = data.frame(Chr1 = character(), Chr2 = character(), size = integer(),
stringsAsFactors=FALSE)
tmp = read.csv("data/Ribbon1.txt", header = FALSE, sep = "\t")
for (i in 1:nrow(tmp)){
ribbonsizes[i,1] = as.character(tmp[i,1])
ribbonsizes[i,2] = as.character(tmp[i,4])
ribbonsizes[i,3] = tmp[i,3] - tmp[i,2]
}
wb = createWorkbook()
addWorksheet(wb, "Ribbon1", gridLines = TRUE)
writeData(wb, sheet = 1, ribbonsizes, rowNames = FALSE)
saveWorkbook(wb, "RibbonSizes.xlsx", overwrite = TRUE)
}
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