path: root/lstm.py

#!/usr/bin/python3
# _*_ coding=utf-8 _*_
#original source:https://github.com/dashee87/blogScripts/blob/master/Jupyter/2017-11-20-predicting-cryptocurrency-prices-with-deep-learning.ipynb

import argparse
import code
import readline
import signal
import sys
import pandas as pd
import json
import os
import numpy as np
import urllib3
import time
from keras.models import Sequential
from keras.layers import Activation, Dense
from keras.layers import LSTM
from keras.layers import Dropout

window_len = 10
split_date = "2017-06-01"

def SigHandler_SIGINT(signum, frame):
    print()
    sys.exit(0)

class Argparser(object):
    def __init__(self):
        parser = argparse.ArgumentParser()
        parser.add_argument("--string", type=str, help="string")
        parser.add_argument("--bool", action="store_true", help="bool", default=False)
        parser.add_argument("--dbg", action="store_true", help="debug", default=False)
        self.args = parser.parse_args()

def getData_CMC(crypto, crypto_short):
    market_info = pd.read_html("https://coinmarketcap.com/currencies/"+crypto+"/historical-data/?start=20130428&end="+time.strftime("%Y%m%d"))[0]
    market_info =  market_info.assign(Date=pd.to_datetime(market_info['Date']))
    if crypto == "ethereum": market_info.loc[market_info["Market Cap"]=="-","Market Cap"]=0
    if crypto == "dogecoin": market_info.loc[market_info["Volume"]=="-","Volume"]=0
    market_info["Volume"] = market_info["Volume"].astype("int64")
    market_info.columns = market_info.columns.str.replace("*", "")
    print(type(market_info))
    print(crypto + " head: ")
    print(market_info.head())
    kwargs = {'close_off_high': lambda x: 2*(x['High']- x['Close'])/(x['High']-x['Low'])-1, 'volatility': lambda x: (x['High']- x['Low'])/(x['Open'])}
    market_info = market_info.assign(**kwargs)
    model_data = market_info[['Date']+[coin+metric for coin in [""] for metric in ['Close','Volume','close_off_high','volatility']]]
    model_data = model_data.sort_values(by='Date')
    print(model_data.head())
    return model_data

def get_sets(crypto, model_data):
    training_set, test_set = model_data[model_data['Date']<split_date], model_data[model_data['Date']>=split_date]
    training_set = training_set.drop('Date', 1)
    test_set = test_set.drop('Date', 1)
    norm_cols = [coin+metric for coin in [] for metric in ['Close', 'Volume']]
    LSTM_training_inputs = []
    for i in range(len(training_set) - window_len):
        temp_set = training_set[i:(i+window_len)].copy()
        for col in norm_cols:
            temp_set.loc[:, col] = temp_set[col]/temp_set[col].iloc[0] -1
        LSTM_training_inputs.append(temp_set)
    LSTM_training_outputs = (training_set["Close"][window_len:].values/training_set["Close"][:-window_len].values) - 1
    LSTM_test_inputs = []
    for i in range(len(test_set)-window_len):
        temp_set = test_set[i:(i+window_len)].copy()
        for col in norm_cols:
            temp_set.loc[:, col] = temp_set[col]/temp_set[col].iloc[0] - 1
        LSTM_test_inputs.append(temp_set)
    LSTM_test_outputs = (test_set['Close'][window_len:].values/test_set['Close'][:-window_len].values)-1
    print(LSTM_training_inputs[0])
    LSTM_training_inputs = [np.array(LSTM_training_input) for LSTM_training_input in LSTM_training_inputs]
    LSTM_training_inputs = np.array(LSTM_training_inputs)

    LSTM_test_inputs = [np.array(LSTM_test_inputs) for LSTM_test_inputs in LSTM_test_inputs]
    LSTM_test_inputs = np.array(LSTM_test_inputs)
    return LSTM_training_inputs, LSTM_test_inputs, training_set

def build_model(inputs, output_size, neurons, activ_func="linear", dropout=0.25, loss="mae", optimizer="adam"):
    model = Sequential()
    model.add(LSTM(neurons, input_shape=(inputs.shape[1], inputs.shape[2])))
    model.add(Dropout(dropout))
    model.add(Dense(units=output_size))
    model.add(Activation(activ_func))
    model.compile(loss=loss, optimizer=optimizer)
    return model

def lstm_type_1(crypto, crypto_short):
    model_data = getData_CMC(crypto, crypto_short)
    np.random.seed(202)
    training_inputs, test_inputs, training_set = get_sets(crypto, model_data)
    model = build_model(training_inputs, output_size=1, neurons=20)
    training_outputs = (training_set['Close'][window_len:].values/training_set['Close'][:-window_len].values)-1
    history = model.fit(training_inputs, training_outputs, epochs=50, batch_size=1, verbose=2, shuffle=True)

def lstm_type_2(crypto, crypto_short, pred_range, neuron_count):
    model_data = getData_CMC(crypto, crypto_short)
    np.random.seed(202)
    training_inputs, test_inputs, training_set = get_sets(crypto, model_data)
    model = build_model(training_inputs, output_size=pred_range, neurons=neuron_count)
    training_outputs = (training_set['Close'][window_len:].values/training_set['Close'][:-window_len].values)-1
    training_outputs = []
    for i in range(window_len, len(training_set['Close'])-pred_range):
        training_outputs.append((training_set['Close'][i:i+pred_range].values/training_set['Close'].values[i-window_len])-1)
    training_outputs = np.array(training_outputs)
    history = model.fit(training_inputs[:-pred_range], training_outputs, epochs=50, batch_size=1, verbose=2, shuffle=True)

def lstm_type_3(crypto, crypto_short, pred_range, neuron_count):
    model_data = getData_CMC(crypto, crypto_short)
    np.random.seed(202)
    training_inputs, test_inputs, training_set = get_sets(crypto, model_data)
    model = build_model(training_inputs, output_size=1, neurons=neuron_count)
    training_outputs = (training_set['Close'][window_len:].values/training_set['Close'][:-window_len].values)-1
    training_outputs = []
    for rand_seed in range(775, 800):
        print(rand_seed)
        np.random.seed(rand_seed)
        temp_model = build_model(training_inputs, output_size=1, neurons=neuron_count)
        temp_model.fit(training_inputs, (training_set['Close'][window_len:].values/training_set['Close'][:-window_len].values)-1, epochs=50, batch_size=1, verbose=0, shuffle=True)
        temp_model.save(crypto + '_model_randseed_%d.h5'%rand_seed)

# write code here
def premain(argparser):
    signal.signal(signal.SIGINT, SigHandler_SIGINT)
    #here
    #lstm_type_1("ethereum", "ether")
    #lstm_type_2("ethereum", "ether", 5, 20)
    lstm_type_3("ethereum", "ether", 5, 20)

def main():
    argparser = Argparser()
    if argparser.args.dbg:
        try:
            premain(argparser)
        except Exception as e:
            print(e.__doc__)
            if e.message: print(e.message)
            variables = globals().copy()
            variables.update(locals())
            shell = code.InteractiveConsole(variables)
            shell.interact(banner="DEBUG REPL")
    else:
        premain(argparser)

if __name__ == "__main__":
    main()