sql - find partial match between two data frame -


i have 2 data frames. 

head(neexp)  gene   transcript ratio_log2      fdr hlhmgamma hlhmgamma-ra   3.759200 1.09e-10 brd       brd-ra   3.527000 2.66e-08 cg4080     cg4080-re   3.378500 2.95e-50 rpii215   rpii215-ra   3.343967 1.82e-10  head(excel$gene) enhancer of split mgamma, helix-loop-helix distal antenna cg4080 gene product transcript cg4080-rb

as can see, 2 gene column match partially(hlhmgamma matches enhancer of split mgamma, helix-loop-helix; cg4080 matches cg4080 gene product transcript cg4080-rb), there anyway can link these two? codes have tried far:

genename=as.character(neexp$gene) query=paste("select * excel excel.gene \"", genename,"\ ",sep"") newtable<-dbgetquery(con,query)  dbgetquery(con,"select * excel, neexp excel.gene % "neexp$gene" %")

you need merge , same join in sql. first might want split excel$gene part want match.

http://stat.ethz.ch/r-manual/r-devel/library/base/html/merge.html

https://stat.ethz.ch/r-manual/r-devel/library/base/html/strsplit.html


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