From 83dfde345f855cfee7f43229448903eb27d2eb2a Mon Sep 17 00:00:00 2001
From: j143 <j143@protonmail.com>
Date: Fri, 7 May 2021 03:03:27 +0530
Subject: [PATCH 1/2] DML style guide initial guide

---
 docs/site/dml-vs-r-guide.md | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/docs/site/dml-vs-r-guide.md b/docs/site/dml-vs-r-guide.md
index 77807043633..b1e62b8fa05 100644
--- a/docs/site/dml-vs-r-guide.md
+++ b/docs/site/dml-vs-r-guide.md
@@ -26,6 +26,29 @@ guide covers various practical functions or operations.
 
 NOTE: This document is still a work in progress.
 
+## DML styleguide
+
+Indentation: `2 spaces`
+Semi-colons: `Optional`
+Spaces between words and parenthesis: `if( check & (it%%2 == 0) )`
+Example variable naming:
+ ```
+ # matrices named in Capitals
+ X = read(fileX)
+ 
+ # double values named in small letters
+ m = nrow(X)
+ 
+ # constructed matrices (general use)
+ row_nonzeros = matrix(0,rows=1,cols=1)
+ 
+ # Assign aggregated values for clear & readable naming
+ norm_G2 = sum (G ^ 2)
+ 
+ # Boolean flags
+ converged = FALSE
+```
+
 ## Table of Contents
 
 * [Multiple outputs](#multiple-outputs)

From c0607bce9c5c61fcb39b0e86153ee25f6c0d1180 Mon Sep 17 00:00:00 2001
From: j143 <j143@protonmail.com>
Date: Fri, 7 May 2021 03:06:51 +0530
Subject: [PATCH 2/2] Add custom udf

---
 docs/site/dml-vs-r-guide.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/docs/site/dml-vs-r-guide.md b/docs/site/dml-vs-r-guide.md
index b1e62b8fa05..73fbe1533e4 100644
--- a/docs/site/dml-vs-r-guide.md
+++ b/docs/site/dml-vs-r-guide.md
@@ -49,6 +49,18 @@ Example variable naming:
  converged = FALSE
 ```
 
+Custom user defined functions
+
+```dml
+m_csplineDS = function (Matrix[Double] X, Matrix[Double] Y, Double inp_x) 
+  return (Matrix[Double] pred_Y) 
+{
+  print("This is a builtin function")
+  pred_Y = matrix(y, 1, 1)
+}
+```
+
+
 ## Table of Contents
 
 * [Multiple outputs](#multiple-outputs)