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Preparing stock data for data analysis

Perl module Finance::QuoteHist allows to get historical stock data for different stock symbols. The script provided below shows the example of extracting data and saving in two dimensional array. The columns of this array has values
for the following:
symbol
date
open
high
low
close
volume


Also this script has implementation for some basic operations that can be applied to stock data before further analysis or making prediction.
The link to perl source code for this link is provided below.


References


1. Preparing stock data for data analysis or prediction - perl script
2. Perl module for fetching historical stock quotes