rmysql

I get below error when I try to install Mysql package (MAC OS) install.packages('RMySQL') package ‘RMySQL’ is available as a source package but not as a binary Warning in install.packages : package ‘RMySQL’ is not available (for R version 3.1.0) I am not sure what I need to set in order for this to work. RyanLeiTaiwan The author of RMySQL no longer provide binary packages , so you will have to build from source. I have posted the complete solution in another thread: Installing RMySQL in mavericks . Basically, in order for install.packages('RMySQL', type='source') to work correctly, what you

I want to use Shiny to let a user build a data frame by accessing an SQL data base. I want it to work in the following way (but open to suggestions): User types in ID (its a number) User presses action button Reactive query is generated Query is sent and data is retrieved, and added to data frame User types in next ID... Here is my attempt: UI library(markdown) shinyUI(fluidPage( titlePanel("Generic grapher"), sidebarLayout( sidebarPanel( numericInput("wafer", label = h3("Select wafer ID:"), value = NULL), actionButton("do", "An action button") ), mainPanel( verbatimTextOutput("value"),

Original example as found in some post According to this post the following SQL statements should give me a vector 1, 2, 2, 2, 2 in the end: require("RMySQL") con <- dbConnect( dbDriver("MySQL"), db="your_db", user="your_user", password="your_pw", host="localhost" ) > con <MySQLConnection:(6640,122)> > dbSendQuery(con, "DROP TABLE IF EXISTS t;") <MySQLResult:(6640,122,0)> > dbSendQuery(con, "CREATE TABLE t (i INT NOT NULL AUTO_INCREMENT PRIMARY KEY);") <MySQLResult:(6640,122,1)> > dbSendQuery(con, "INSERT INTO t VALUES(NULL);") <MySQLResult:(6640,122,2)> > dbGetQuery(con, "SELECT LAST_INSERT

I am making the move from RSQLite to RMySQL and I am confused by the user and password fields. FWIW, I'm running Windows 7, R 2.12.2, MySQL 5.5 (all 64 bit), and RMySQL 0.7-5. I installed RMySQL as prescribed in this previous SO question , and as far as I know it works (i.e., I can load the package with library(RMySQL) ). But when I try to run the tutorial from the R data import guide , I get a "failed to connect to database..." error. This is the code from the tutorial from the guide: library(RMySQL) # will load DBI as well ## open a connection to a MySQL database con <- dbConnect(dbDriver(

I'm an R user, and I frequently find that I need to write functions that require subsetting large datasets (10s of millions of rows). When I apply such functions over a large number of observations, it can get very time consuming if I'm not careful about how I implement it. To do this, I have sometimes used the data.table package, and this provides much faster speeds than subsetting using data frames. Recently, I've started experimenting with packages like RMySQL, pushing some tables to mysql, and using the package to run sql queries and return results. I have found mixed performance