गॉडजिला की खोज में। तंत्रिका नेटवर्क और पूर्वानुमान उद्धरण विनिमय और "बाहरी" डेटा के आधार पर

import pandas as pd

#Loading bh.dat
mit_data = pd.read_table('.../bh.dat',
                         header=None, names=['blockID', 'hash','block_timestamp', 'n_txs'])
mit_data['block_timestamp'] = pd.to_datetime(mit_data['block_timestamp'], unit='s')
#Loading info about output of transactions
out_txs_all = pd.read_table('.../txout.dat',header=None,
                           names=['txID', 'output_seq','addrID', 'sum'])
#Loading info transaction overview dataset
mapping_dataset = pd.read_table('.../tx.dat', #The path to the tx.dat file
                                header=None, names=['txID', 'blockID','n_inputs', 'n_outputs'])
#Dropping needless columns in outputs dataset and summing up outputs values groupping them by 'txID'
out_txs_all.drop('output_seq',axis=1,inplace=True)
out_txs_all.drop('addrID',axis=1,inplace=True)
out_txs_all = out_txs_all.groupby('txID').sum().reset_index()

#Dropping needless columns in transactions dataset and adding outputs values
mapping_dataset.drop('n_inputs', axis=1,inplace=True)
mapping_dataset.drop('n_outputs', axis=1,inplace=True)
mapping_dataset['sum_outs'] = out_txs_all['sum']

#Now we can dropp 'txID' column since it's useless now.
#Then we group mapping_df by blockID and addup all sums to get btc_sum per particular block
mapping_dataset.drop('txID', axis=1, inplace=True)
mapping_dataset=mapping_dataset.groupby('blockID').sum().reset_index()

#Prepare mit_data to the next manipulations
mit_data.drop('hash', axis=1,inplace=True)
mit_data.drop('n_txs', axis=1,inplace=True)

#Now we just can get dates from sliced block_timestemp dataset and concatinate
#it with mapping_df since they have equals sizes and contains similar blocks.
mapping_dataset['Date'] = mit_data['block_timestamp']
mapping_dataset['sum_outs'] = mapping_dataset['sum_outs'].apply(lambda x: x/100000000) #Getting amount of bitcoins instead of satoshies

#Finally we are making a csv file
mapping_dataset.to_csv('../filename.csv', index=False) 

import requests
import json
# Makeing timeline in unix time
limit_day = pd.to_datetime('2018-02-09')
datelist = pd.date_range(limit_day, periods=733).to_list()
date_series = pd.DataFrame(data=(datelist), columns=['Date'])
dt = pd.DatetimeIndex(date_series['Date']).astype(np.int64)//1000000
unix_mlseconds_lst = dt.to_list()

#Getting blocks hash list with timestamps
blocks_lst = []
for j in unix_mlseconds_lst:
    request = requests.get('https://blockchain.info/blocks/'+str(j)+'?format=json')
    parse_result = json.loads(request.content)
    blocks_lst.append(parse_result['blocks'])

#Parsing json content for the final dataset
blockID = []
hashID = []
timestamp = []
for d_list in blocks_lst:
    for dictionary in d_list:
        blockID.append(dictionary['height'])
        hashID.append(dictionary['hash'])
        timestamp.append(dictionary['time'])

#Makeing additional bh-dataset
additional_bh = pd.DataFrame(data=(blockID,hashID,timestamp)).T
additional_bh.columns=['blockID','hash','timestamp']
additional_bh['timestamp']=pd.to_datetime(additional_bh['timestamp'], unit='s')

#Getting info about additional outputs
dates_out_sums = {}
for indx in range(len(additional_bh)):
    request = requests.get('https://blockchain.info/rawblock/'+str(additional_bh['hash'][indx])) #Getting all info about block by it's hash
    parse_result = json.loads(request.content)
    block_outs_sum=[]
    for i in parse_result['tx']: #Running through all txs to sum up all outputs
        intermid_out_sum_values = []
        for j in i['out']:
            intermid_out_sum_values.append(j['value'])
        block_outs_sum.append(sum(intermid_out_sum_values))
    dates_out_sums[bh['timestamp'][indx]] = sum(block_outs_sum)

#Making dataframe of additional outputs
dates_out_sums_lst = dates_out_sums.items()
out_txs = pd.DataFrame(dates_out_sums_lst, columns=['Date', 'out_sums'])
out_txs['out_sums']=out_txs['out_sums'].apply(lambda x: x/100000000) #Making a series of bitcoins instead of satoshies
out_txs.to_csv('.../Data/additional_outs_dated(2018-02-09_2018-04-28).csv', index=False)

import re
import pandas as pd

def strtofloatconvert(data):

    #Converting series to list
    price_lst = data['Price'].to_list()
    open_lst = data['Open'].to_list()
    high_lst = data['High'].to_list()
    low_lst = data['Low'].to_list()
    vol_lst = data['Vol.'].to_list()
    change_lst = data['Change %'].to_list()

    #Separating str by ',' sign exept Volume strings. It's got anoter
    #format, like '294.8K' or '12.9M'. Volume we convert lower
    sprt_prices = []
    sprt_open = []
    sprt_high = []
    sprt_low = []
    sprt_p = []
    sprt_o = []
    sprt_h = []
    sprt_l = []

    for price in price_lst:
        sprt_p = re.split(r',',price)
        sprt_prices.append(sprt_p)
    for open_p in open_lst:
        sprt_o = re.split(r',',open_p)
        sprt_open.append(sprt_o)
    for high in high_lst:
        sprt_h = re.split(r',',high)
        sprt_high.append(sprt_h)
    for low in low_lst:
        sprt_l = re.split(r',',low)
        sprt_low.append(sprt_l)

    #Adding splitted values together and converting them to float
    add_p = []
    add_o = []
    add_h = []
    add_l = []
    add_v = []
    add_ch = []

    for p in sprt_prices:
        if len(p) == 2:
            a = p[0]+p[1]
            a = float(a)
            add_p.append(a)
        else:
            a = p[0]
            a = float(a)
            add_p.append(a)
    for o in sprt_open:
        if len(o) == 2:
            a = o[0]+o[1]
            a = float(a)
            add_o.append(a)
        else:
            a = o[0]
            a = float(a)
            add_o.append(a)
    for h in sprt_high:
        if len(h) == 2:
            a = h[0]+h[1]
            a = float(a)
            add_h.append(a)
        else:
            a = h[0]
            a = float(a)
            add_h.append(a)
    for l in sprt_low:
        if len(l) == 2:
            a = l[0]+l[1]
            a = float(a)
            add_l.append(a)
        else:
            a = l[0]
            a = float(a)
            add_l.append(a)

    #Working with zeroes in 'Vol.' in str_flt because it does not matter whether we put None or zero in empty space.
    #Pandas will convert None into NaN wich is kind of float 'number'. It will not respond to pandas 'isnull()' function.
    for v in vol_lst:
        if v == '-':
            add_v.append(0)
        else:
            exam = re.findall(r'K',v)
            if len(exam)>0:
                add = re.sub(r'K', '',v)
                add = float(add)
                add *= 1000
                add_v.append(add)
            else:
                add = re.sub(r'M', '',v)
                add = float(add)
                add *= 1000000
                add_v.append(add)
    for i in change_lst:
        add = re.sub(r'%', '',i)
        add = float(add)
        add_ch.append(add)

    #Putting all lists above to the DataFrame
    test_df = pd.DataFrame(data=(add_p, add_o, add_h, add_l,
                                        add_v,add_ch)).T
    test_df.columns = ['Price', 'Open', 'High', 'Low', 'Vol.', 'Change%']
    return test_df

def build_model():
    model = keras.Sequential([
    layers.Dense(32, activation='relu', input_shape=[len(train.keys())]),
    layers.Dense(32, activation='relu'),
    layers.Dense(32, activation='relu'),
    layers.Dense(16, activation='relu'),
    layers.Dense(1)
    ])
    optimizer = tf.keras.optimizers.RMSprop(0.001)
    model.compile(loss='mse',
                optimizer=optimizer,
                metrics=['mae', 'mse'])
    return model
model = build_model()
model.summary()

EPOCHS = 500

# Patience parameter describes epoch amount testing on improvement
early_stop = keras.callbacks.EarlyStopping(monitor='val_loss', patience=10)

model.fit(normed_train_data2, train_labels2, epochs=EPOCHS,
                    validation_split = 0.2, verbose=0, callbacks=[early_stop, PrintDot()])

actual_price = later_testds_for_plot.pop('Price')
actual_dates = later_testds_for_plot.pop('Date')
normed_practice_data = norm(train, later_testds_for_plot)
practice_prediction = model.predict(normed_practice_data).flatten()

actual_price2 = later_testds_for_plot2.pop('Price')
actual_dates2 = later_testds_for_plot2.pop('Date')
normed_practice_data2 = norm(train2, later_testds_for_plot2)
practice_prediction2 = model.predict(normed_practice_data2).flatten()

fig = plt.figure(figsize=(15,6))
ax1 = fig.add_subplot(121)
ax2 = fig.add_subplot(122)

ax1.plot(actual_dates,actual_price, label ='actual btc price')
ax1.plot(actual_dates,practice_prediction, label ='predicted btc price')
ax1.set_title('BTC Close Price Prediction with only Exch Data')
ax1.legend()

ax2.plot(actual_dates2,actual_price2, label ='actual btc price')
ax2.plot(actual_dates2,practice_prediction2, label ='predicted btc price')
ax2.set_title('BTC Close Price Prediction with Outs')
ax2.legend()