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ic1100
2010 Dec 20
0
performance issue with merge
...s do not have the full range of values in the second column, but I
don't want to loose any values during the merge. As far as I understood it I
have to merge using the all.x and all.y directives which appears to be
related to the outer join of relational dbs. This would give me something
like:
ID1_100 3.14 1.56 3.45
ID1_200 2.71 NA 1.34
ID1_300 0.92 1.22 NA
...
Merging works as long I do not set the all.x and all.y directive in the
merge command:
DF <- data.frame(NULL)
count=0
filenames <- list.files()
filenames
for(i in filenames) {
count<-count+1
tmp <- read.d...