Hello list.
I have a vector of values:
eg
> head(diff_mirs_list)
[1] "hsa-miR-26b" "hsa-miR-26b" "hsa-miR-23a" "hsa-miR-27b" "hsa-miR-29a"
[6] "hsa-miR-29b"
and I would like to conditionally replace each value in this vector with a
number defined in a dataframe:
> fc
Probe ave.fc
1 hsa-let-7a 1.28
2 hsa-miR-100 1.47
3 hsa-miR-125a-5p 1.31
4 hsa-miR-140-3p 1.28
5 hsa-miR-143 1.98
6 hsa-miR-193a-3p 1.37
7 hsa-miR-193b 1.48
8 hsa-miR-195 1.16
9 hsa-miR-214 1.22
10 hsa-miR-23a 1.21
11 hsa-miR-26b 1.13
12 hsa-miR-27b 1.37
13 hsa-miR-29a 1.24
14 hsa-miR-29b 1.69
15 hsa-miR-30b 1.16
16 hsa-miR-424 1.42
17 hsa-miR-768-3p 1.48
18 hsa-miR-886-3p 1.43
19 hsa-miR-933 1.23
ie every hsa-let-7a in the diff_mirs_list is replaced by 1.28, hsa-miR-100 by
1.47 etc etc
I have tried to make a loop to use gsub eg
> for (i in 1:nrow(fc)){
+ test<-gsub(fc[i,1], fc[i,2], diff_mirs_list)
}
but this obviously passes the unchanged vector to gsub each time and so I get
back my 'test' vector with only hsa-miR-933 changed. Could someone help me out
with this please.
Thanks
Iain
> sessionInfo()
R version 2.8.0 (2008-10-20)
i486-pc-linux-gnu
locale:
LC_CTYPE=en_GB.UTF-8;LC_NUMERIC=C;LC_TIME=en_GB.UTF-8;LC_COLLATE=en_GB.UTF-8;LC_MONETARY=C;LC_MESSAGES=en_GB.UTF-8;LC_PAPER=en_GB.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_GB.UTF-8;LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets methods base
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