From ee97c23e7be96cf84737f2d847c6bd0781596406 Mon Sep 17 00:00:00 2001
From: Dirk Sarpe <dsarpe@posteo.de>
Date: Wed, 9 Jan 2019 11:15:34 +0100
Subject: [PATCH] add note on compressed files

---
 rstudio1.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/rstudio1.md b/rstudio1.md
index 7c9e210..265888e 100644
--- a/rstudio1.md
+++ b/rstudio1.md
@@ -31,6 +31,8 @@ RStudio stores several files like suspended sessions, graph history etc. in `~/.
 ### /data
 You can create your own directories here and place data inside. By default others can read the directories you created here, but not write in them. If you need any special permission let us know via it-support@idiv.de. To directly jump to another directory select the *Files* pane and click on the three dots (…) located on the right hand side of the current file path. Now enter the path you want to browse, e.g. `/data/`. Additionally there should be a symbolic link in your home directory called data, which points to the /data directory.
 
+Please note that R is able to work with compressed files. This is especially useful if you are the typical csv/txt file user. Those files usually contain highly redundant data. Therefore compression can be very effective, e.g. the file which triggered me to write this was a txt file of 4 GB the gz compressed file had 98 MB. Many tools to read or write (e.g. read.table, fread from data.table) allow transparent use of compressed files, i.e. you just specify the compressed file instead of the uncompressed file.
+
 ### iDiv group shares
 If you are part of an iDiv group you can access your group share on the rstudio server at `/data/GROUPNAME-group-share/`. If your group share is not available yet please contact [it-support@idiv.de](mailto:it-support@idiv.de).
 
-- 
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