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iris1
2012 Feb 02
9
sqldf for Very Large Tab Delimited Files
...ed irisTab in the mytestdb sqlite database
read.csv.sql("irisNoH.txt", sql = "create table main.irisTab1 as select *
from file", dbname = "mytestdb")
res1<-sqldf("select * from main.irisTab1 limit 10", dbname = "mytestdb")
write.table(res1, "iris10.txt", sep = "\t", quote = FALSE,
col.names=FALSE,row.names = FALSE)
# For querying records of a particular species - unresolved problems
#a1<-"virginica"
#attr(f1, "names") <- c("A1","A2","A3","A4","A5")
#re...