Arrays aliasing a portion.

Question

Hello,

 

I am new to C# but I have been researching a lot before posting.  Here is my issue which I have not found an open source answer to and I am hoping to resolve.

 

I have an array that is 20 rows by 5 columns.  It is static in size.

 

In the rows there is bar data from a stock market chart.

 

Layed out as follows.

 

Column

0 = Time

1 = Open

2 = High

3 = Low

4 = Close 

 

This will be update through out the day. 

 

 I want to create and alias (not sure if this is the right word) for the following data block in order to analyse further elswhere.

 

I want to reference the "Close" column the last 10 rows only.  I do not need the other columns nor do I need anything below the 10 entry at this time.  I would like to create a constant or some other way of idenfying easily this block which will get passed to other sections of coding that I am working on.  

 

 Thank you