Displaying 6 results from an estimated 6 matches similar to: "no visible binding for global variable for data sets in a package"
2020 Oct 03
1
Lahman Baseball Data Using R DBI Package
The double quotes are required by SQL if a name is not of the form
letter-followed-by-any-number-of-letters-or-numbers or if the name is a SQL
keyword like 'where' or 'select'. If you are doing this from a function,
you may as well quote all the names.
-Bill
On Fri, Oct 2, 2020 at 6:18 PM Philip <herd_dog at cox.net> wrote:
> The \?2B\? worked. Have no idea why. Can
2020 Oct 02
3
Lahman Baseball Data Using R DBI Package
I?m trying to pull data from one table (batting) in the Lahman Baseball database. Notice X2B for doubles and X3B for triples ? fourth and fifth from the right.
The dbGetQuery function runs fine when I leave there two out but I get error messages (in red) when I include 2B/3B or X2B/X3B.
Can anyone give me some direction?
Thanks,
Philip Heinrich
2020 Oct 08
0
Lahman Baseball Data Using R DBI Package
Hi Philip,
You've probably realized by now that R doesn't like column names that
start with a number. If you try to access an R-dataframe column named
2B or 3B with the familiar "$" notation, you'll get an error:
> library(DBI)
> library(RSQLite)
> con2 <- dbConnect(SQLite(), "~/R_Dir/lahmansbaseballdb.sqlite")
> Hack12Batting <-
2020 Oct 08
1
Lahman Baseball Data Using R DBI Package
This is really a feature of SQL, not R. SQL requires that you double quote
column names that start with numbers, include spaces, etc., or that are SQL
key words. E.g.,
> d <- data.frame(Order=c("sit","stay","heel"),
Where=c("here","there","there"), From=c("me","me","you"))
>
2011 Sep 16
2
R license for a derived data-only package
I'm looking for guidance or advice about the R license to use in
preparing a package containing the
Baseball Database from http://baseball1.com/statistics/
My main purpose is to make it available to students in a course, and to
develop it with others
I'd like to put it on R-Forge, and then perhaps make it public on CRAN.
However, the page above bears a very restrictive copyright notice
2011 Sep 09
3
Read a list of files into named R data.frames
I have a collection of .csv files in a directory, and want to read them
into R data.frames whose names
are the same as the file names, without the .csv extension
e.g., from
> (files <- list.files(pattern="*.csv"))
[1] "Allstar.csv" "AllstarFull.csv"
[3] "Appearances.csv" "AwardsManagers.csv"
[5]