Merged with master

docs/HTML/DataFrame.html

@@ -109,7 +109,7 @@ <H2 ID="1"><font color="blue">Summary <font size="+4">&#9730;</font></font></H2>
     <LI>To start off on basic operations, see <a href="https://github.com/hosseinmoein/DataFrame/blob/master/examples/hello_world.cc">Hello World</a></LI>
     <LI>Also, see <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DataFrameTypes.html">DataFrame Library Types</a></LI>
     <LI>DataFrame has both sync and async interfaces, latter returning C++ std::future</LI>
-    <LI><I>Read <B>multithreading</B>, <B>views</B>, <B>visitors</B>, and <B>memory alignment</B> sections below, before getting serious about this library</I></LI>
+    <LI><I>Read <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DataFrame.html#3"><B>multithreading</B></a>, <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DataFrame.html#4"><B>views</B></a>, <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DataFrame.html#5"><B>visitors</B></a>, and <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DataFrame.html#6"><B>memory alignment</B></a> sections below, before getting serious about this library</I></LI>
   </UL>
 
 <BR>
@@ -127,9 +127,9 @@ <H2 ID="1"><font color="blue">Summary <font size="+4">&#9730;</font></font></H2>
     <LI><B>HeteroView<span style='color:#808030; '>&lt;</span><span style='color:#666616;'>std</span><span style='color:#800080;'>::</span><span style='color:#603000;'>size_t</span> A <span style='color:#808030;'>=</span> <span style='color:#008c00;'>0</span><span style='color:#808030;'>></span></B>: This is a heterogenous vector view. It will result in a data frame view into a <I>contiguous</I> slice of another data frame. This view is slightly more efficient than <I>HeteroPtrView</I></LI>
     <LI><B>HeteroConstView<span style='color:#808030; '>&lt;</span><span style='color:#666616;'>std</span><span style='color:#800080;'>::</span><span style='color:#603000;'>size_t</span> A <span style='color:#808030;'>=</span> <span style='color:#008c00;'>0</span><span style='color:#808030;'>></span></B>: The const version of HeteroView.</LI>
   </UL>
-  Template parameter <B>A</B> referrers to byte boundary alignment to be used in memory allocations. The default is system default boundaries for each type. See <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DataFrameTypes.html">DataFrame Library Types</a> for convenient typedef's, especially under <I> Library-wide Types</I> section. Also, see <I>Memory Alignment</I> section below<BR>
+  Template parameter <B>A</B> referrers to byte boundary alignment to be used in memory allocations. The default is system default boundaries for each type. See <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DataFrameTypes.html">DataFrame Library Types</a> for convenient typedef's, especially under <I> Library-wide Types</I> section. Also, see <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DataFrame.html#6"><I>Memory Alignment</I></a> section below<BR>
   Some of the methods in DataFrame return another DataFrame or one of the above views depending on what you asked for. DataFrame and view instances should be indistinguishable from the user's point of view.<BR>
-  See <I>Views</I> section below. Also, see <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DataFrameTypes.html">DataFrame Library Types</a> for convenient typedef's<BR>
+  See <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DataFrame.html#4"><I>Views</I></a> section below. Also, see <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DataFrameTypes.html">DataFrame Library Types</a> for convenient typedef's<BR>
 
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@@ -629,6 +629,10 @@ <H2 ID="2"><font color="blue">API Reference with code samples <font size="+4">&#
       <td title="Applies function to the given column(s)"><a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/apply.html">apply</a>( 3 )</td>
     </tr>
 
+    <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
+      <td title="Assigns one DataFrame to another"><a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/assign.html">assign()</a></td>
+    </tr>
+
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
       <td title="Visits multiple columns one at a time"><a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/multi_visit.html">multi_visit</a>()</td>
     </tr>