Update influenza-like-illness-analysis.Rmd

module3/exo1/influenza-like-illness-analysis.Rmd

@@ -45,7 +45,15 @@ This is the documentation of the data from [the download site](https://ns.sentiw
 
 The first line of the CSV file is a comment, which we ignore with `skip=1`.
 ```{r}
-data = read.csv(data_url, skip=1)
+data_file = "syndrome-grippal.csv"	
+if (!file.exists(data_file)) {	
+    download.file(data_url, data_file, method="auto")	
+}
+```
+
+### Lecture
+```{r}
+data = read.csv(data_file, skip=1)
 ```
 
 Let's have a look at what we got: