Hi All--
Sorry i sent the one inadvertently
Her is a sample of my data. A data frame (MyDF) and a list (MyList). My
own data frame has over 10,000 rows. I want to find out which elements of
MyDF$B contain any element(s) of MYList; then change MyDF$C to the name of
the vector of the list that has match.
I solved this via loops and if statements, using &in& but I am hoping for
a better solution using the apply family functions. I tried something like
this but did not work.
lapply(strsplit(MyDF$B," "),function(x) lapply(MyList,function(y) if(sum(y
%in% x)>0,x$Code==y[[1]]))
Thanks in advance--EK
My Sample data
> MyDF
A B C
1 1 aa ab ac 0
2 2 bb bc bd 0
3 3 cc cf 0
4 4 dd 0
5 5 ee 0
> MyList
$X
[1] "a" "ba" "cc"
$Y
[1] "abs" "aa" "BA" "BB"
$z
[1] "ab" "bb" "xy" "zy" "gh"
Desired results.
> MyDF
A B C
1 1 aa ab ac Y
2 2 bb bc bd Y
3 3 cc cf X
4 4 dd 0
5 5 ee 0
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