[R] Q about RSQLite

Pfaff, Bernhard Dr. Bernhard_Pfaff at fra.invesco.com
Tue Jan 3 14:33:44 CET 2006


Hello Liu,

this might be caused by NA entries in your SQLite table. Have a look at the
following code:


(test <- data.frame(matrix(c(1:10, NA, NA), ncol=2, nrow=6)))
con <- dbConnect(SQLite(), dbname = "test.db")
dbWriteTable(con, "test", test, type="BLOB", overwrite=TRUE)
d1 <- dbReadTable(con, "test")
dbDisconnect(con)
d1


HTH,
Bernhard  

-----Ursprüngliche Nachricht-----
Von: Wensui Liu [mailto:liuwensui at gmail.com] 
Gesendet: Samstag, 31. Dezember 2005 07:09
An: r-help at stat.math.ethz.ch
Betreff: [R] Q about RSQLite

Happy new year, dear listers,

I have a question about Rsqlite.

when I fetch the data out of sqlite database, there is something like '\r\n'
at the end of last column. Here is the example:
   Sepal_Length Sepal_Width Petal_Length Petal_Width    Species
1           5.1         3.5          1.4         0.2 setosa\r\n
2           4.9         3.0          1.4         0.2 setosa\r\n
3           4.7         3.2          1.3         0.2 setosa\r\n
4           4.6         3.1          1.5         0.2 setosa\r\n
5           5.0         3.6          1.4         0.2 setosa\r\n
6           5.4         3.9          1.7         0.4 setosa\r\n
7           4.6         3.4          1.4         0.3 setosa\r\n
8           5.0         3.4          1.5         0.2 setosa\r\n
9           4.4         2.9          1.4         0.2 setosa\r\n
10          4.9         3.1          1.5         0.1 setosa\r\n

Any idea?

Thank you so much

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