<![CDATA[Easy Guides]]> https://www.sthda.com (C) 2005-2026 PHPBoost en PHPBoost <![CDATA[RSTHDA / R Web - Online statistic tools]]> https://www.sthda.com/english/wiki/rsthda-r-web-online-statistic-tools https://www.sthda.com/english/wiki/rsthda-r-web-online-statistic-tools online statistical tool for data analysis and plotting with R. The GUI is intuitive and easy to use without any installation in your computer. RSTHDA use R statistical environment.


File format




RSTHDA web tool supports only .txt tabulation or .csv file formats. Before uploading your data in RSTHDA, it must be checked using the following guidelines :

  1. Supported file formats : .txt tabulation or .csv files
  2. The columns of your data are variables and rows are individuals or samples
  3. Don't use special characters or spaces in column or row names. Replace all spaces in column or row names by underscore "_". Examples of good column names : name_1 | name_2 | name_3. Examples of bad column names : name 1 | name 2 | name 3
  4. Decimal separator should be a dots (".") and not commas (",")
  5. Maximum file size allowed per upload : 5MB


An example of supported file format is shown below :

]]> Sun, 26 Oct 2014 13:17:37 +0100 <![CDATA[[RWSTHDA-1.1] - Load and read a data file]]> https://www.sthda.com/english/wiki/rwsthda-1-1-load-and-read-a-data-file https://www.sthda.com/english/wiki/rwsthda-1-1-load-and-read-a-data-file Importing data in RWSTHDA


File format and size




The file must be in tab-delimited (*.txt) format or in comma-separated (.*)CSV format. The columns are variables (see the image below).



Supported file formats: txt | csv.
Maximum file size allowed: 1MB
Maximum number of files allowed per user: 2


File manager interface



To import your data from RWSTHDA, click File -> Add

The file management window appears:




The file management window includes 2 main tabs:

The first tab allows you to add and delete files. The second tab allows you to import data into R.



Importing data into RWSTHDA



Data import is done in 3 steps:


1 - Add a file and 2 - click Start to load (first tab)

3 - Click Next to move to the second tab:


  • Select a file to import into R.
  • Specify the import options.
  • Click Import to load the data into R.


The software then reads the file and automatically creates two other files of the form: 'your_login.txt' and 'your_login.RData'.

Your imported data will be available in these two forms in all the software.

To load another file, you must do the same operation and the old data will be deleted. At each start of RWSTHDA, the old imported data are deleted.


To refresh the list of files: Click File -> Refresh.




(Click to see tutorial)



Read files in RWSTHDA



2 ways to read a file in R:


Method 1: Read the file using advanced options





This method has several advantages:

  • It gives the possibility to choose the import options.
  • It saves the file in. RDATA which can be loaded easily at any time in R.
  • It saves a (.*)txt file of your imported data. This is the file which will then be used by the various modules of RWSTHDA to make graphics and statistical analysis.








1 - Click on the file name: the file management window appears
2 - Click on Next
3 - Select the file of interest to import
4 - Select the import options for the type of file
5 - Click Import to load the file in r




Method 2: Quick method







1 - Select a file from the selection field
2 - Click on Read: R script is shown in the console
3 - Click on Submit to read the file in R






(Click to see the tutorial)
]]> Sun, 26 Oct 2014 12:54:48 +0100 <![CDATA[[RWSTHDA-1.1] - Quickstart]]> https://www.sthda.com/english/wiki/rwsthda-1-1-quickstart https://www.sthda.com/english/wiki/rwsthda-1-1-quickstart Registration

You must be a member of STHDA web site to use RWSTHDA software.

To register click here

After registration, login with your credentials.


Use RWSTHDA



To access to RWSTHDA software click here.

(Click to enlarge)




Overview of RWSTHDA software



RWSTHDA has a console to run the R script and a graphical interface to make many analysis and graphics.

The software features are shown in the video below :


(Click to see the tutorial)




RWSTHDA software has several tabs described below :


Settings



This tab allows you to modify the software options including the theme.


File



This tab allows you to add and delete files.



Analysis




  1. Factor Analysis
    • PCA - Principal Component Analysis
    • CA - Correspondence Analysis
    • MCA - Multiple Correspondance Analysis
  2. Survival
    • Kaplan-Meier
    • Maxstat
    • Cox model
  3. Correlation
    • Correlation test
    • Correlation matrix



Graphiques




The graphics are interactively made ​​by RWSTHDA software using ggplot2 package.






Statistics



  1. Descriptive statistics
    • Description of data table
    • Description of numeric variable
  2. Comparison of means
    • One sample Student test
    • Independent samples Student test
    • Paired Student test
    • ANOVA
  3. Non-parametric tests
    • Independent samples Wilcoxon test
    • Paired samples Wilcoxon test
  4. Two variances F-test
  5. Chi-square test and exact Fisher test
  6. Shapiro-Wilk test of normality




Change RWSTHDA theme



Several themes are available for RWSTHDA software.

To change the theme, click Settings -> Themes -> select the prefered theme


(Cliquer pour voir le tutoriel)


Submit R script using RWSTHDA console



To do this, simply write your script in the console and then click on send.

To draw a graph, you must use the following procedure:

Code R :
&nbsp;
png&#40;file="boxplot.png"&#41;
boxplot&#40;rnorm&#40;20&#41;&#41;
dev.off&#40;&#41;
&nbsp;



You can also use R jpeg function.


The graphics script should definitely be of the form :
Code R :
&nbsp;
png&#40;file="myfile.png"&#41; 
plot&#40;1&#41;
dev.off&#40;&#41;
&nbsp;


or

Code R :
&nbsp;
jpeg&#40;file="myfile.jpg"&#41;
plot&#40;1&#41;
dev.off&#40;&#41;
&nbsp;





(Click to see the tutorial)
]]> Sun, 13 Jan 2013 23:26:20 +0100