diff --git a/jupyter/r.md b/jupyter/r.md
index eed553d..f2d4bf1 100644
--- a/jupyter/r.md
+++ b/jupyter/r.md
@@ -1,3 +1,11 @@
+installation
+---------------------------------------
+* to install R on ubuntu can to [r download page](https://cran.r-project.org/)
+* there are instruction on what to add to sources.list.
+* After doing apt-get update, will probably need to add the public key which is addressed [here](https://askubuntu.com/questions/13065/how-do-i-fix-the-gpg-error-no-pubkey#15272)
+* then do `sudo apt-get install r-base`
+
+
 using grid.arrange
 https://cran.r-project.org/web/packages/gridExtra/vignettes/arrangeGrob.html
 
@@ -31,4 +39,4 @@ for (i in dim1) {
         print(j);
     }
 }
-```
\ No newline at end of file
+```
diff --git a/jupyter/setup.md b/jupyter/setup.md
index 31d4675..ac50378 100644
--- a/jupyter/setup.md
+++ b/jupyter/setup.md
@@ -1,8 +1,8 @@
 
 install R kernel for jupyter to use
 * `sudo R`
-* `install.packages('IRkernel')`
-* `IRkernel::installspec()`
+* `install.packages('IRkernel')` (most likely have to run R under sudo)
+* `IRkernel::installspec()` (don't use sudo R)
 
 run on network:
 `jupyter notebook --ip 10.0.10.15 --port 8888`
@@ -11,4 +11,4 @@ run on network:
 basic packages:
 * ggplot2, plyr, ggExtra, scales
 
-issues with connectin to kernel, atempting update of all packages `update.packages(ask = FALSE)`
\ No newline at end of file
+issues with connectin to kernel, atempting update of all packages `update.packages(ask = FALSE)`