Table of Contents

• Introduction
• Tools
• Command Line

Introduction

YFImport is a tool to import Yahoo Finance data for experiments with StreamPref Data Stream Management System (DSMS) prototype. YFImport is composed by a downloading tool and auxiliary tools to generated StreamPref environments for the execution of experiments.

Tools

The YFImport is composed by individual tools for downloading of data and for execution of experiments with StreamPref DSMS prototype. The tools are the following:

• yfimport.py: Tool for data download;
• best.py: Tool for experiments with BEST and TOPK operators (best tuples according to conditional preferences);
• bestseq.py: Tool for experiments with BESTSEQ operator (best sequences according to temporal conditional preferences);
• conseq.py: Tool for experiments with CONSEQ operator (subsequences with consecutive tuples);
• endseq.py: Tool for experiments with ENDSEQ operator (subsequences with last position);
• seq.py: Tool for experiments with SEQ operator (sequence extraction);

The experiments parameters must be updated directly in the source code. Please see the related publications for more information.

Command Line

Command line for yfimport.py tool:

yfimport.py [-h] [-s START] [-e END] [-x EXCHANGE]
  -h, --help
		show the help message and exit
  -s START, --start START
		Start date yyyy-mm-dd(default: 365 days before end date)
  -e END, --end END
		End date yyyy-mm-dd(default: system current date)
  -x EXCHANGE, --exchange EXCHANGE
        	Filter by an exchange