comparison Dotplot_Release/Normalization.R @ 0:dfa3436beb67 draft

Uploaded
author bornea
date Fri, 29 Jan 2016 09:56:02 -0500
parents
children
comparison
equal deleted inserted replaced
-1:000000000000 0:dfa3436beb67
1 #!/usr/bin/env Rscript
2
3 args <- commandArgs(trailingOnly = TRUE)
4
5 #this programs normalizes a saint input file based on the spectral counts of all preys
6
7 d = read.delim(args[1], header=T, sep="\t", as.is=T)
8
9 baitn = 1
10 curr_bait <- d$Bait[1]
11 s <- vector()
12 s[1] = 0
13 for(i in 1:length(d$Bait)){
14 if(curr_bait != d$Bait[i]){
15 baitn <- baitn + 1
16 curr_bait <- d$Bait[i]
17 s[baitn] <- d$AvgSpec[i]
18 }
19 else{
20 s[baitn] <- s[baitn] + d$AvgSpec[i]
21 }
22 }
23
24 med.s = median(s)
25 s = s / med.s
26
27 d_n <- d
28 baitn = 1
29 curr_bait <- d_n$Bait[1]
30 for(i in 1:length(d_n$Bait)){
31 if(curr_bait != d_n$Bait[i]){
32 baitn <- baitn + 1
33 curr_bait <- d_n$Bait[i]
34 d_n$AvgSpec[i] <- d_n$AvgSpec[i]/s[baitn]
35 }
36 else{
37 d_n$AvgSpec[i] <- d_n$AvgSpec[i]/s[baitn]
38 }
39 }
40
41 #print normalized data to file
42
43 write.table(d_n, file = "norm_saint.txt", sep="\t", quote=F, row.names=F)
44