Easy Guides

RQuery

Sat, 08 Oct 2016 09:32:58 +0200

Introduction

RQuery, the simplified R code!
RQuery is a set of R functions allowing you to do your statistical and graphics analysis, quickly and easily. It requires no special knowledge of programming in R. You just have to follow the various tutorials on it to answer your specific needs. It is therefore well suited for a beginner in R programming. RQuery functions can be used directly in R console by sourcing the rquery.r file.
With Rquery, you will be able, in the most cases, to do complex analysis with only one R command line. RQuery is also associated with an executable GUI. It can also be used online without installing anything on your own machine.

This page presents some of RQuery features. RQuery is multiplatform and thus works well on Windows, Mac and Linux.

Graphic generated by RQuery

Go...

Rquery in pictures

Sun, 22 Jul 2012 11:04:40 +0200

Download and install RQuery

Sun, 22 Jul 2012 10:05:58 +0200

To use RQuery, you have two options :

Using RQuery online
Using RQuery on your own computer

Using RQuery functions online

RQuery functions are easy to use online through RQuery-Studio, without installing anything on your own computer.

RQuery-Studio is a web server on which R & RQuery are already installed including all required R packages. RQuery-Studio integrates RStudio and you can easly access to R onine as if you were on your own computer

To use RQuery online, you just have to create your RQuery-Studio account and to login. For this click here

Installing RQuery on your computer

Have the right tools

Subscrive to this site and log into your member area
Download and install R by clicking here
Download RQuery here and save it.

Start and configure R to use RQuery

Follow the steps below:

Step 1: Start R

Windows: Start -> All Programs -> R.
MACOS X: Click on R icon in the Applications folder.
Linux: Open shell and type R then press the Enter key.

Step 2: Import RQuery environment in R

Windows: File->Source R code -> specify RQuery-windows.r file path, you downloaded

Mac: File-> Source File ->specify RQuery-mac.r file path, you downloaded

Linux: Use the source command from R console. This command can also be used on Windows and Mac

Code R :

 
source("Indicate the absolute path to RQuery-xxx.r")

Step 3: Install the R packages required for RQuery

You just have to use the function rquery.checkEnv included in the RQuery-xxx.r file. An internet connection is required.

Type this command line in R :

Code R :

rquery.checkEnv()

rquery.checkEnv install automatically all R packages require to use RQuery.

During the installation process, a window will appear asking you to select a mirror site from which R packages will be downloaded. Preferably select your contry. The selected country will only influence the download speed.

The installation process may take 2-5min depending on your internet connection.

If you use Linux OS, it is necessary to install rgl package from linux console (not from R console) in order to make 3D graphics.

The code is :

Code BASH :

 
apt-get install r-cran-rgl

Etape 4: Your turn

It's your turn now to follow the various tutorials on RQuery

If you have any questions, please ask them on the forum