crystal_talib

Crystal bindings for the TA-lib library. TA-Lib performs technical analysis of financial market data.

Installation (only tested on Linux so far)

1. Download and build TA-lib (./configure && make)

2. Copy the contents of src/.libs to /usr/lib

3. Add the dependency to your shard.yml:

   dependencies:
     crystal_talib:
       github: fridgerator/crystal_talib
   

4. Run shards install

Usage

require "crystal_talib"

# List all TA-LIB functions
functions = result = CrystalTalib.functions
functions # Array(String)

# Execute a TA-LIB function
market_data = { open: Array(Float64), close: Array(Float64), high: Array(Float64), low: Array(Float64), volume: Array(Float64) }
result = CrystalTalib.execute(
  "ADX",
  start_idx: 0,
  end_idx: market_data.close.size - 1,
  high: market_data.high,
  low: market_data.low,
  close: market_data.close,
  opt_in_time_period: 9
)

result.beg_index # Int32
result.nb_element # Int32
result.result #  Hash(String, Array(Float64))

# Discover input and output parameters of functions
function_description = CrystalTalib.explain("ADX")

Contributing

1. Fork it (https://github.com/fridgerator/crystal_talib/fork)
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request

Contributors

• Nick Franken - creator and maintainer