diff --git a/module4/challenger_aschmide.Rmd b/module4/challenger_aschmide.Rmd
index 12cdf9d5641127c0599638d6e852baf1947d9696..c00b3a2e296bdc809f13d930ee4afb595ab49613 100644
--- a/module4/challenger_aschmide.Rmd
+++ b/module4/challenger_aschmide.Rmd
@@ -1,7 +1,7 @@
 ---
 title: "Risk Analysis of the Space Shuttle: Pre-Challenger Prediction of Failure"
 author: "Arnaud Legrand"
-date: "25 October 2018"
+date: "25 October 2018 / new run by Agathe S on 12 April 2020"
 output: pdf_document
 ---
 
@@ -12,6 +12,8 @@ On the fourth page of this article, they indicate that the maximum likelihood es
 
 # Technical information on the computer on which the analysis is run
 We will be using the R language using the ggplot2 library.
+
+AgatheS edit : missing devtools package installed (first use of R language)
 ```{r}
 library(ggplot2)
 sessionInfo()
@@ -25,8 +27,10 @@ devtools::session_info()
 
 # Loading and inspecting data
 Let's start by reading data:
+
+Fist the data was downloaded from [the gitlab platform](https://app-learninglab.inria.fr/moocrr/gitlab/moocrr-session3/moocrr-reproducibility-study/tree/master/data) and saved locally on 12/04/2020
 ```{r}
-data = read.csv("/home/aschmide/Téléchargements/shuttle.csv",header=T)
+data = read.csv("./shuttle.csv",header=T)
 data
 ```
 
diff --git a/module4/challenger_aschmide.pdf b/module4/challenger_aschmide.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..d8e81c13f86e12b181cdc5b535258fe07fbb3396
Binary files /dev/null and b/module4/challenger_aschmide.pdf differ