gem purpose

1. download and maintenace daily k data
2. init strategy
3. provide API to higher layer

why name yongquan?

yongquan is a xuewei under the foot. it means it is a basic module to provide api to higher layer

usage

• require 'yongquan'

Test example

• rake test ; to run all case
• rake test TEST="test/test_init.rb"

reference

• Rake::testtask
• http://rake.rubyforge.org/classes/Rake/TestTask.html

make own gem

http://guides.rubygems.org/make-your-own-gem/

API service

• Global variable service

$target_strategy_file

• provide target strategy file full path with name

$all_stock_list

• provide a hash , key is yahoo id , and value is stock name

$working_day_hash

• provide a hash, key is 2014 date, value is true/false , means open or close of market

provide a strategy class

• Strategy.send(strategy).root_path

provide email sent service

• email_notify(strategy,title,body)

provide yahoo id to sina id

• convert_yahoo_symbol_to_sina(yahoo_symbol)

provide api to initialize a single stock folder

• initialize_single_stock_folder(strategy,symbol)

provide data gap calculation

• get_last_date_of_raw_date(strategy,symbol)
• get_last_date_of_raw_process_date(strategy,symbol)
• get_last_date_of_signal(strategy,symbol)
• get_last_date_of_win_lost(strategy,symbol)
• check_working_day?(date)
• get_gap_date_array(start_date,end_date)

Yahoo download history APi

• download_yahoo_history(strategy,symbol)
• batch_download_yahoo_history(strategy)

append raw data with real data

• append_raw_data(strategy,symbol)
• batch_append_raw_data(strategy,symbol_array)