bioinformatics

I am trying to write a code which replaces repeating symbols in a string with a symbol and number of its repeats (like that: "aaaaggggtt" --> "a4g4t2"). But I'm getting string index out of range error(( seq = input() i = 0 j = 1 v = 1 while j<=len(seq)-1: if seq[i] == seq[j]: v += 1 i += 1 j += 1 elif seq[i] != seq[j]: seq.replace(seq[i-v:j], seq[i] + str(v)) v = 1 i += 1 j += 1 print(seq) line 6, in if seq[i] == seq[j]: IndexError: string index out of range UPD: After changing len(seq) to len(seq)-1 there is no more string index error, but the code still doesn't work. Input: aaaaggggtt Output

I would like to compare two data sets df1 and df2 in such a way that, the unique characters in df2$ID should be added as a new column in df1 and assign df2$Xp value for each gene, if the coordinates of df1 overlaps with the coordinates of df2: df1 <- read.table(text=" Gene chr Start End Gm12724 4 1000 1105 Zfhx2 4 1254 1369 Usp17lc 7 5004 5412 Lingo1 7 5698 5789 Sart3 7 5987 6041 Olfr978 4 1452 1564 ", header=T) df2 <- read.table(text=" ID chr Start End Xp S8411 4 989 1258 0.312 S8411 4 1300 1800 0.144 S8411 7 5641 6874 0.136 S8413 4 1307 1360 -1.999 ",header=T) expected output df3 <- read

I want to install the bioconductor rain package for R in Jupyter notebook. I am not able to install this package in Jupyter notebook following instructions given on the website linked above - in an R Jupiter notebook: source("https://bioconductor.org/biocLite.R") biocLite("rain") I get the following error: Warning message: In install.packages(pkgs = doing, lib = lib, ...): installation of package ‘gmp’ had non-zero exit statusWarning message: In install.packages(pkgs = doing, lib = lib, ...): installation of package ‘rain’ had non-zero exit status I was able to install a different bioconductor