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r
0
votes
0
answers
22
views
Can't mysqlimport csv file (into table made with sqlSave())
I would like to bulk insert a csv file into a MySQL 5.5 table that I create with the sqlSave() command in the RODBC package. I use sqlSave() to…
mysql
r
rodbc
mysqlimport
asked
June 21, 2011 6:37 am CDT
richardh
0
votes
0
answers
34
views
"foreach" loop : Using all cores in R (especially if we are sending sql queries inside foreach loop)
I intend to use "foreach" to uitlize all the cores in my CPU. The catch is i need to send a sql query inside the loop. The script is working fine…
mysql
r
foreach
multicore
modx-revolution
asked
June 20, 2011 12:40 am CDT
rajesh
3
votes
1
answer
31
views
Run an R script at boot
First of all, this may need to be moved to superuser. I couldn't decide which venue was better. I am trying to write an R script that will run at…
r
ubuntu
redis
multicore
autostart
asked
June 17, 2011 2:38 pm CDT
Zach
0
votes
1
answer
26
views
Regular Expressions in R - compare one column to another
I currently have a dataset which has two columns that I'd like to compare. In one column, I have a string that I'd like to search for (let's call it…
regex
r
asked
June 16, 2011 4:45 pm CDT
vize
0
votes
0
answers
25
views
Calling RJava function in dbApply?
R relative newbie here. I wanted to either run a dbApply or apply a custom rJava function to a particular column (say the len_diff column, on all…
java
mysql
r
rjava
rmysql
asked
June 15, 2011 7:54 am CDT
saigafreak
0
votes
2
answers
25
views
How to skip primary key in sqlSave() command?
I am trying to insert a data.frame in the MySQL database using RODBC. The command I am using is the following:…
mysql
r
rodbc
asked
June 15, 2011 12:58 am CDT
Sami
0
votes
0
answers
28
views
R ftpUpload Function: how to overwrite the previous file?
I am using R function ftpUpload, while when I upload the file to the website that I found the old one in the website cannot be overwritten.…
r
ftp
overwrite
asked
June 13, 2011 9:33 pm CDT
Eva
0
votes
4
answers
22
views
Sqlite or mysql for large datasets
I am working with large datasets (10s of millions of records, at times, 100s of millions), and want to use a database program that links well with…
mysql
sqlite
r
asked
June 11, 2011 9:01 am CDT
exl
0
votes
0
answers
26
views
Link access 2007 into mysql
I have a access file on server which my colleagues will update it regularly and sometimes I need to analyze the data by the following method:…
mysql
ms-access
r
asked
June 9, 2011 9:11 pm CDT
lokheart
0
votes
2
answers
25
views
Regular expression with space
I am using regular expression in R with the following code: > temp <- c("Herniorrhaphy, left inguinal", "Herniorrhaphy, right inguinal") >…
regex
r
asked
June 6, 2011 10:16 pm CDT
lokheart
2
votes
4
answers
25
views
Regular expressions in R to erase all characters after the first space?
Hello, I have data in R that can look like this: USDZAR Curncy R157 Govt SPX Index In other words, one word, in this case a Bloomberg security…
regex
r
asked
June 4, 2011 6:33 pm CDT
Thomas Browne
1
vote
3
answers
40
views
How can I use back references with `grep` in R?
I am looking for an elegant way of returning back references using regular expressions in R. Le me explain: Let's say I want to find strings that…
regex
r
grep
gsub
asked
June 1, 2011 4:56 am CDT
Andrie
0
votes
1
answer
52
views
Establishing a connection between R and a Hive (Hadoop) database
Does anyone know how to achieve that? I am assuming that RJDBC would help; but from my (likely naive) understanding, a bit of tweaking is necessary…
r
jdbc
hadoop
hive
asked
May 19, 2011 6:24 am CDT
crayola
1
vote
1
answer
34
views
How to remove all whitespace from a string in R?
So " xx yy 11 22 33 " will become "xxyy112233". How can I achieve this?
regex
r
grep
asked
May 13, 2011 7:49 am CDT
waanders
1
vote
1
answer
30
views
Regular Expression to replace substring occurrences when not surrounded by square brackets
Lets say I have the following string vector: x <- c("this!", "is!", "not my name[!]!", "Understrand[!] Mate!", "Because!I[!] said so!") I need a…
regex
r
asked
May 9, 2011 7:46 am CDT
Tony Breyal
0
votes
0
answers
29
views
Import a DB with RSQLite
Hello. My question is the following : I have a file "table.sql" corresponding to one table. I want to use it in R and I want to use RSQLite. Is it…
sqlite
r
asked
May 3, 2011 6:17 am CDT
Miranda
0
votes
2
answers
46
views
Error when trying to connect R to PostgreSQL using RODBC
I am trying to connect to R using RODBC. However, when I run ch <- odbcConnect("rails_dev", uid="skline", pwd="d0gsleep") I get this error: In…
osx
postgresql
r
rodbc
asked
April 27, 2011 11:59 am CDT
Spencer
0
votes
1
answers
90
views
R2.13.0 - Failed to load RMySQL package
I've installed R2.13 and MySQL's workbench, server and client. But when I tried accessing MySQL via R from the following codes: require(RMySQL) it…
mysql
r
rmysql
asked
April 26, 2011 2:05 pm CDT
mvgsqy
0
votes
1
answers
43
views
How does doRedis work?
I've been playing around with the R interface to the redis database , as well as the doRedis parallel backend for foreach . I have a couple of…
r
parallel-processing
redis
cluster-computing
asked
April 23, 2011 11:13 am CDT
Zach
2
votes
1
answer
57
views
Enable temporary file creation and usage in Apache/PHP by Python/R - best options
I have a python/R script, that uses both Python and R to compute a figure. The actual figure is generated by R and it can be stored as a PNG image.…
php
python
apache
r
asked
April 18, 2011 6:28 am CDT
grokkaine
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