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December 19, 2015 21:59
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| assignment = function(x, k = 4) { | |
| names(x) = seq_along(x) | |
| y = vector("list", k) | |
| ysum = sapply(y, function(x) 0) | |
| flag = 0 | |
| while(length(x)) { | |
| if(flag) { | |
| a = sort(x, decreasing = FALSE)[1:ifelse(length(x) > k, k, length(x))] | |
| for(i in seq_along(a)) { | |
| o = order(ysum, decreasing = TRUE) | |
| y[[ o[i] ]] = c(y[[ o[i] ]], a[i]) | |
| } | |
| x = x[ -order(x, decreasing = FALSE)[seq_along(a)] ] | |
| flag = !flag | |
| } else { | |
| a = sort(x, decreasing = TRUE)[1:ifelse(length(x) > k, k, length(x))] | |
| for(i in seq_along(a)) { | |
| o = order(ysum, decreasing = FALSE) | |
| y[[ o[i] ]] = c(y[[ o[i] ]], a[i]) | |
| } | |
| x = x[ -order(x, decreasing = TRUE)[seq_along(a)] ] | |
| flag = !flag | |
| } | |
| ysum = sapply(y, sum) | |
| } | |
| lapply(y, function(x) sort(as.numeric(names(x)))) | |
| } | |
| chr.length = c( | |
| chr1=249250621, | |
| chr2=243199373, | |
| chr3=198022430, | |
| chr4=191154276, | |
| chr5=180915260, | |
| chr6=171115067, | |
| chr7=159138663, | |
| chr8=146364022, | |
| chr9=141213431, | |
| chr10=135534747, | |
| chr11=135006516, | |
| chr12=133851895, | |
| chr13=115169878, | |
| chr14=107349540, | |
| chr15=102531392, | |
| chr16=90354753, | |
| chr17=81195210, | |
| chr18=78077248, | |
| chr19=59128983, | |
| chr20=63025520, | |
| chr21=48129895, | |
| chr22=51304566, | |
| chrX=155270560, | |
| chrY=59373566) | |
| assignment(chr.length) | |
| assignment(chr.length, 8) |
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