Remove the summer schools working directory section

Author: AshKernow

Markdowns/07_Data_Exploration.Rmd

@@ -3,10 +3,10 @@ title: "Introduction to Bulk RNAseq data analysis"
 subtitle: Initial exploration of RNA-seq data
 date: '`r format(Sys.time(), "Last modified: %d %b %Y")`'
 output:
-  pdf_document:
-    toc: yes
   html_document:
     toc: yes
+  pdf_document:
+    toc: yes
 bibliography: ref.bib
 ---
 
@@ -42,23 +42,6 @@ transformation
 * do some initial exploration of the raw count data using principle component 
 analysis  
 
-# Set working directory
-
-Before starting we need to make sure that the working directory for R is set to
-the **RNAseq** directory, which contains all the necessary file for these
-practicals. You can do this using the menu bar:
-
-`Session` >> `Set Working Directory` >> `Choose Directory ...`
-
-![](images/SetWorkingDirectory.png){width=75%}
-
-
-or you can use the following code in the R console:
-
-```
-setwd("~/Course_Materials/RNAseq")
-```
-
 # Data import
 
 First, let's load all the packages we will need to analyse the data.