search for: dmr_log2pbde47

...mparisons. The "sqldf" package used to work well , but today, I cannot resolve the following error by reinstallation of the sqldf package. Can anyone suggest a different way to perform this kind of merge function? Thank you, Ding > DMRlog2pbde47DMS <- sqldf("select * from DMR_log2pbde47 as a left join DMS_log2pbde47 as b + on a.chrom = b.chromosome and a.start <= b.MAPINFO and a.end >= b.MAPINFO" ) Error in get(as.character(FUN), mode = "function", envir = envir) : object 'as.AsIs' of mode 'function' was not found...