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memberno
2004 May 18
2
delete duplicated from data.frame
Hi,
?unique
unique returns a vector, data frame or array like x * but with duplicate
elements removed *
what i'm doing wrong delete duplicated rows with same MEMEBRNO.
februar <- dmsegment[unique(dmsegment$MEMBERNO),]
This reduce from 197.188 rows to 184.199 but duplicated MEMBERNO didn't left
all what a Primary Key setting in mysql me say and with a fix(februar) could
recognize .
Courious why MEMEBRNO 4,5 ,6 and 11 are left !
dmsegment$MEMBERN...