Hello, R experts,
I tried to retrieve all biological process GO terms at level 3 starting
"biological process" as level 1 using the code as bellows:
1 library(GO)
2 library(GOstats)
3 level2<-getGOChildren("GO:0008150")$"GO:0008150"$Children
4 for ( i in 1:length(level2)) {
5 level3 <- getGOChildren(level2[i])$level2[i]$Children
6 for ( j in 1:length(level3)){
7 level3term <- getGOTerm(as.character(level3[j]))$BP$level3[j]
8 level3term
9 }
10 }
What is the difference between line 3 and line5? In the line 3 I retrieved the
GO identifiers at level 2 successfullly but in the line 5 I got nothing. How to
correct the line 5 to retrieve the GO terms at level 3 correctly?
Thank you in advance!
Josh
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