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mydb
2010 Jan 02
0
filehash - multiple indices via '[' not allowed when using RDS format
...ot;DB1")
dbCreate("mydb3", type = "DB1")
db = dbInit("mydb3")
db$a = rnorm(100, 1)
db$b = rnorm(100, 1)
with(db, c(a = mean(a), b = mean(b)))
sapply(db[c("a", "b")], mean) # works.
filehashOption(defaultType = "RDS")
dbCreate("mydb4", type = "RDS")
db = dbInit("mydb4")
db$a = rnorm(100, 1)
db$b = rnorm(100, 1)
with(db, c(a = mean(a), b = mean(b)))
sapply(db[c("a", "b")], mean) # not work
Error in .local(x, i, j, ..., drop) :
multiple indices via '[' not allowed
Calls: sa...