[20/50] git commit: Document fortran dependency for MLBase

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Document fortran dependency for MLBase


Project: http://git-wip-us.apache.org/repos/asf/incubator-spark/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-spark/commit/cefee1ed
Tree: http://git-wip-us.apache.org/repos/asf/incubator-spark/tree/cefee1ed
Diff: http://git-wip-us.apache.org/repos/asf/incubator-spark/diff/cefee1ed

Branch: refs/heads/master
Commit: cefee1ed1aa0fca086c54c7d0aa87f98571180c1
Parents: c81377b
Author: Patrick Wendell <pw...@gmail.com>
Authored: Mon Sep 9 21:45:04 2013 -0700
Committer: Patrick Wendell <pw...@gmail.com>
Committed: Mon Sep 9 21:45:04 2013 -0700

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 docs/mllib-guide.md | 7 +++++++
 1 file changed, 7 insertions(+)
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http://git-wip-us.apache.org/repos/asf/incubator-spark/blob/cefee1ed/docs/mllib-guide.md
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diff --git a/docs/mllib-guide.md b/docs/mllib-guide.md
index 1583ce4..f991d86 100644
--- a/docs/mllib-guide.md
+++ b/docs/mllib-guide.md
@@ -11,6 +11,13 @@ filtering, as well as an underlying gradient descent optimization primitive.
 This guide will outline the functionality supported in MLlib and also provides
 an example of invoking MLlib.
 
+# Dependencies
+MLlib uses the [jblas](https://github.com/mikiobraun/jblas) linear algebra library, which itself
+depends on native Fortran routines. You may need to install the 
+[gfortran runtime library](https://github.com/mikiobraun/jblas/wiki/Missing-Libraries)
+if it is not already present on your nodes. MLlib will throw a linking error if it cannot 
+detect these libraries automatically.
+
 # Binary Classification
 
 Binary classification is a supervised learning problem in which we want to