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Added page index to DataFrame.html and DateTime.html
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hosseinmoein committed Jul 22, 2024
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<body style="font-family: Georgia, serif">

<center>
<img src="https://github.com/hosseinmoein/DataFrame/blob/master/docs/LionLookingUp.jpg?raw=true" alt="C++ DataFrame" width="30" height="30"/>
<img src="https://github.com/hosseinmoein/DataFrame/blob/master/docs/LionLookingUp.jpg?raw=true" alt="C++ DataFrame" width="60" height="60"/>
<img src="https://github.com/hosseinmoein/DataFrame/blob/master/docs/LionLookingUp.jpg?raw=true" alt="C++ DataFrame" width="90" height="90"/>
<img src="https://github.com/hosseinmoein/DataFrame/blob/master/docs/LionLookingUp.jpg?raw=true" alt="C++ DataFrame" width="120" height="120"/>
<img src="https://github.com/hosseinmoein/DataFrame/blob/master/docs/LionLookingUp.jpg?raw=true" alt="C++ DataFrame" width="150" height="150"/>
<img src="https://github.com/hosseinmoein/DataFrame/blob/master/docs/LionLookingUp.jpg?raw=true" alt="C++ DataFrame" width="180" height="180"/>
<img src="https://github.com/hosseinmoein/DataFrame/blob/master/docs/LionLookingUp.jpg?raw=true" alt="C++ DataFrame" width="150" height="150"/>
<img src="https://github.com/hosseinmoein/DataFrame/blob/master/docs/LionLookingUp.jpg?raw=true" alt="C++ DataFrame" width="120" height="120"/>
<img src="https://github.com/hosseinmoein/DataFrame/blob/master/docs/LionLookingUp.jpg?raw=true" alt="C++ DataFrame" width="90" height="90"/>
<img src="https://github.com/hosseinmoein/DataFrame/blob/master/docs/LionLookingUp.jpg?raw=true" alt="C++ DataFrame" width="60" height="60"/>
<img src="https://github.com/hosseinmoein/DataFrame/blob/master/docs/LionLookingUp.jpg?raw=true" alt="C++ DataFrame" width="30" height="30"/>
<img src="https://github.com/hosseinmoein/DataFrame/blob/master/docs/LionLookingUp.jpg?raw=true" alt="C++ DataFrame" width="30" height="30"/>
<img src="https://github.com/hosseinmoein/DataFrame/blob/master/docs/LionLookingUp.jpg?raw=true" alt="C++ DataFrame" width="60" height="60"/>
<img src="https://github.com/hosseinmoein/DataFrame/blob/master/docs/LionLookingUp.jpg?raw=true" alt="C++ DataFrame" width="90" height="90"/>
<img src="https://github.com/hosseinmoein/DataFrame/blob/master/docs/LionLookingUp.jpg?raw=true" alt="C++ DataFrame" width="120" height="120"/>
<img src="https://github.com/hosseinmoein/DataFrame/blob/master/docs/LionLookingUp.jpg?raw=true" alt="C++ DataFrame" width="150" height="150"/>
<img src="https://github.com/hosseinmoein/DataFrame/blob/master/docs/LionLookingUp.jpg?raw=true" alt="C++ DataFrame" width="180" height="180"/>
<img src="https://github.com/hosseinmoein/DataFrame/blob/master/docs/LionLookingUp.jpg?raw=true" alt="C++ DataFrame" width="150" height="150"/>
<img src="https://github.com/hosseinmoein/DataFrame/blob/master/docs/LionLookingUp.jpg?raw=true" alt="C++ DataFrame" width="120" height="120"/>
<img src="https://github.com/hosseinmoein/DataFrame/blob/master/docs/LionLookingUp.jpg?raw=true" alt="C++ DataFrame" width="90" height="90"/>
<img src="https://github.com/hosseinmoein/DataFrame/blob/master/docs/LionLookingUp.jpg?raw=true" alt="C++ DataFrame" width="60" height="60"/>
<img src="https://github.com/hosseinmoein/DataFrame/blob/master/docs/LionLookingUp.jpg?raw=true" alt="C++ DataFrame" width="30" height="30"/>
</center>

<BR><a href="https://github.com/hosseinmoein/DataFrame?tab=readme-ov-file">&#8592; Back to Github</a><BR>

<BR>

<UL>
<LI><font color="blue" size="+1"><B>Page Index</B></font></LI>
<UL>
<LI><a href="https://github.com/hosseinmoein/DataFrame?tab=readme-ov-file">&#8592; Back to Github</a></LI>
<LI><a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DataFrame.html#1">&#128209; Summary</a></LI>
<LI><a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DataFrame.html#2">&#128375; API Reference with code samples</a></LI>
<LI><a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DataFrame.html#3">&#127939; Multithreading</a></LI>
<LI><a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DataFrame.html#4">&#x1F3D9; Views</a></LI>
<LI><a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DataFrame.html#5">&#128109; Visitors</a></LI>
<LI><a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DataFrame.html#6">&#128376; Memory Alignment</a></LI>
<LI><a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DataFrame.html#7">&#128290; Numeric Generators</a></LI>
<LI><a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DataFrame.html#8">&#127796; Code Structure</a></LI>
<LI><a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DataFrame.html#9">&#x1F6E0; Build Instructions</a></LI>
</UL>
</UL>

<H2 ID="1"><font color="blue">Summary</font></H2>
<P>
<font size="+1">DataFrame</font> is a templatized and heterogeneous C++ container designed for data analysis for statistical, machine-learning, or financial applications. You can think of data-frame as a two-dimensional data structure of columns and rows just like an Excel spreadsheet, or a SQL table. But in case of C++ DataFrame, your data needn't be two-dimensional necessarily. Columns in the C++ DataFrame could be vectors of any type, including DataFrames or other containers. So, a C++ DataFrame can be of any dimension. That's the logical layout of the data. C++ DataFrame also includes an intuitive API for data analysis and analytics. The API is designed to be open-ended meaning you can easily include your own custom algorithms.<BR>
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<P>
Views have useful and practical use-cases. A view is a slice of a DataFrame that is a reference to the original DataFrame. It appears exactly the same as a DataFrame, but if you modify any data in the view, the corresponding data point(s) in the original DataFrame will also be modified and vice versa. There are certain things you cannot do in views. For example, you cannot add or delete columns, extend the index column, ...<BR><BR>

In general there are two kinds of views
In general there are two kinds of views
<OL>
<LI>Regular Views: You can change data in the view or in the original DataFrame and see the change on both sides</LI>
<LI>Const Views: You can not change data in the view. But you can change the data in the original DataFrame or through another view and it will be refelcted in the const view</LI>
Expand Down Expand Up @@ -1547,7 +1563,7 @@ <H2 ID="6"><font color="blue">Memory Alignment</font></H2>
<P>
DataFrame gives you the ability to allocate memory on custom alignment boundaries.<BR>
You can use this feature to take advantage of <I>SIMD</I> instructions in modern CPU's. Since DataFrame algorithms are all done on vectors of data &#8212; columns, this can come handy in conjunction with compiler optimizations. Also, you can use alignment to prevent false cache-line sharing between multiple columns.<BR>
There are convenient typedef's that define DataFrames that allocate memory, for example, on 64, 128, 256, ... bytes boundaries. See <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DataFrameTypes.html">DataFrame Library Types</a>.<BR>
There are convenient typedef's that define DataFrames that allocate memory, for example, on 64, 128, 256, ... bytes boundaries. See <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DataFrameTypes.html">DataFrame Library Types</a>.<BR>
When you get access to <I>columns</I> in a DataFrame, you will get a reference to a <I>StlVecType</I>. <I>StlVecType</I> is just a <I>std::vector</I> with custom allocator for the requested alignment.<BR>
</P>

Expand Down Expand Up @@ -1582,9 +1598,9 @@ <H2 ID="9"><font color="blue">Build Instructions</font></H2>
<font size="+1"><B>Using plain make and make-files:</B></font><BR>
Go to the <I>src</I> subdirectory, and execute build_all.sh. This will build the library and test executables for <I>Linux/Unix flavors only</I><BR>
<font size="+1"><B>Using CMake:</B></font><BR>
You would be able to build this in Linux, Windows, MacOS, and more &#8212; see README<BR>
You would be able to build this in Linux, Windows, MacOS, and more &#8212; see README<BR>
<font size="+1"><B>Using Package Managers:</B></font><BR>
You can also use <I>Conan</I> or <I>VCPKG</I> &#8212; see README
You can also use <I>Conan</I> or <I>VCPKG</I> &#8212; see README
</P>

<BR><a href="https://github.com/hosseinmoein/DataFrame?tab=readme-ov-file">&#8592; Back to Github</a><BR>
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