def SampleLSTM(ticker: str):
plot = PlotHelper()
prices = PricingData(ticker)
print('Loading ' + ticker)
CreateFolder(dataFolder + 'samples')
if prices.LoadHistory():
prices.NormalizePrices()
daysInTarget = 15
daysInTraining = 200
sampleData = prices.GetPriceHistory()
endDate = sampleData.index.max()
cuttoffDate = endDate - BDay(daysInTarget)
startDate = cuttoffDate - BDay(daysInTraining)
print(dataFolder + 'samples/LSTMsampleLearning', startDate,
cuttoffDate, endDate)
plot.PlotDataFrameDateRange(sampleData[['Average']], cuttoffDate,
daysInTraining,
'Learn from this series of days', 'Date',
'Price',
dataFolder + 'samples/LSTMLearning')
plot.PlotDataFrameDateRange(
sampleData[['Average']], endDate, daysInTarget,
'Predict what happens after this series of days', 'Date', 'Price',
dataFolder + 'samples/LSTMTarget')
def SampleGraphs(ticker: str, daysInGraph: int):
plot = PlotHelper()
prices = PricingData(ticker)
print('Loading ' + ticker)
if prices.LoadHistory():
prices.NormalizePrices()
sampleData = prices.GetPriceHistory()
d = sampleData.index[-1]
for i in range(
0, 200,
10): #Add new days to the end for crystal ball predictions
sampleDate = d - BDay(i) #pick business day to plot
plot.PlotDataFrameDateRange(
sampleData[['Open', 'High', 'Low', 'Close']], sampleDate,
daysInGraph, 'Sample window ' + str(daysInGraph), 'Date',
'Price', dataFolder + 'samples/sample' + str(i) + '_' +
str(daysInGraph))
def SampleCNN(ticker:str):
plot = PlotHelper()
prices = PricingData(ticker)
print('Loading ' + ticker)
if prices.LoadHistory(True):
prices.NormalizePrices()
window_size = 80
target_size = 10
daysInTraining = 800
sampleData = prices.GetPriceHistory()
endDate = sampleData.index.max()
cuttoffDate = endDate - BDay(window_size)
startDate = cuttoffDate - BDay(daysInTraining)
print(dataFolder + 'samples/LSTMsampleLearning', startDate, cuttoffDate, endDate)
for i in range(0,10):
ii = i * window_size
d1 = startDate + BDay(ii)
d2 = d1 + BDay(target_size)
print(d1, d2, window_size, target_size)
plot.PlotDataFrameDateRange(sampleData[['Average']], d1, window_size, 'Sample image ' + str(i), 'Date', 'Price', dataFolder + 'samples/CNN' + str(i) + 'Sample')
plot.PlotDataFrameDateRange(sampleData[['Average']], d2, target_size, 'Target image ' + str(i), 'Date', 'Price', dataFolder + 'samples/CNN' + str(i) + 'Target')
def PredictPrices(prices: PricingData,
predictionMethod: int = 0,
daysForward: int = 5,
numberOfLearningPasses: int = 500):
#Procedure to execute a given prediction method: linear projection, LSTM, CNN
#Results are exported to the "experiment" sub folder, including a CSV file containing actual and predicted data, and graphs
assert (0 <= predictionMethod <= 2)
plot = PlotHelper()
if predictionMethod == 0: #Linear projection
print('Running Linear Projection model predicting ' +
str(daysForward) + ' days...')
modelDescription = prices.stockTicker + '_Linear_daysforward' + str(
daysForward)
predDF = prices.GetPriceHistory()
predDF['Average'] = (predDF['Open'] + predDF['High'] + predDF['Low'] +
predDF['Close']) / 4
d = predDF.index[-1]
for i in range(
0, daysForward
): #Add new days to the end for crystal ball predictions
predDF.loc[d + BDay(i + 1), 'Average_Predicted'] = 0
predDF['PastSlope'] = predDF['Average'].shift(
daysForward) / predDF['Average'].shift(daysForward * 2)
predDF['Average_Predicted'] = predDF['Average'].shift(
daysForward) * predDF['PastSlope']
predDF['PercentageDeviation'] = abs(
(predDF['Average'] - predDF['Average_Predicted']) /
predDF['Average'])
else:
SourceFieldList = ['High', 'Low', 'Open', 'Close']
if predictionMethod == 1: #LSTM learning
print('Running LSTM model predicting ' + str(daysForward) +
' days...')
SourceFieldList = None
UseLSTM = True
window_size = 10
modelDescription = prices.stockTicker + '_LSTM' + '_epochs' + str(
numberOfLearningPasses) + '_histwin' + str(
window_size) + '_daysforward' + str(daysForward)
elif predictionMethod == 2: #CNN Learning
print('Running CNN model predicting ' + str(daysForward) +
' days...')
UseLSTM = False
window_size = 16 * daysForward
modelDescription = prices.stockTicker + '_CNN' + '_epochs' + str(
numberOfLearningPasses) + '_histwin' + str(
window_size) + '_daysforward' + str(daysForward)
learningModule = StockPredictionNN(baseModelName=prices.stockTicker,
UseLSTM=UseLSTM)
learningModule.LoadSource(prices.GetPriceHistory(),
FieldList=SourceFieldList,
window_size=window_size)
learningModule.LoadTarget(targetDF=None,
prediction_target_days=daysForward)
learningModule.MakeBatches(batch_size=32, train_test_split=.93)
learningModule.Train(epochs=numberOfLearningPasses)
learningModule.Predict(True)
predDF = learningModule.GetTrainingResults(True, True)
predDF['PercentageDeviation'] = abs(
(predDF['Average'] - predDF['Average_Predicted']) /
predDF['Average'])
averageDeviation = predDF['PercentageDeviation'].tail(
round(predDF.shape[0] /
4)).mean() #Average of the last 25% to account for training.
print('Average deviation: ', averageDeviation * 100, '%')
predDF = predDF.reindex(sorted(predDF.columns),
axis=1) #Sort columns alphabetical
predDF.to_csv(dataFolder + modelDescription + '.csv')
plot.PlotDataFrame(predDF[['Average',
'Average_Predicted']], modelDescription, 'Date',
'Price', True, 'experiment/' + modelDescription)
plot.PlotDataFrameDateRange(predDF[['Average', 'Average_Predicted']], None,
160, modelDescription + '_last160ays', 'Date',
'Price',
dataFolder + modelDescription + '_last160Days')
plot.PlotDataFrameDateRange(
predDF[['Average', 'Average_Predicted']], None, 1000,
modelDescription + '_last1000ays', 'Date', 'Price',
dataFolder + modelDescription + '_last1000Days')
def TrainTickerRaw(ticker: str = '^SPX',
UseLSTM: bool = True,
prediction_target_days: int = 5,
epochs: int = 500,
usePercentages: bool = False,
hidden_layer_size: int = 512,
dropout: bool = True,
dropout_rate: float = 0.01,
learning_rate: float = 2e-5):
plot = PlotHelper()
prices = PricingData(ticker)
print('Loading ' + ticker)
if prices.LoadHistory(True):
prices.TrimToDateRange('1/1/2000', '3/1/2018')
if usePercentages:
prices.ConvertToPercentages(
) #Percentages don't work well I suspect because small errors have a huge impact when you revert back to the original prices and they roll forward
else:
prices.NormalizePrices()
prices.CalculateStats()
model = StockPredictionNN(baseModelName=ticker, UseLSTM=UseLSTM)
if UseLSTM:
window_size = 1
modelDescription = ticker + '_LSTM'
modelDescription += '_epochs' + str(epochs) + '_histwin' + str(
window_size) + '_daysforward' + str(prediction_target_days)
if usePercentages: modelDescription += '_percentages'
FieldList = ['Average']
model.LoadSource(sourceDF=prices.GetPriceHistory(),
FieldList=FieldList,
window_size=window_size)
model.LoadTarget(targetDF=None,
prediction_target_days=prediction_target_days)
model.MakeBatches(batch_size=128, train_test_split=.93)
model.BuildModel(layer_count=1,
hidden_layer_size=hidden_layer_size,
dropout=dropout,
dropout_rate=dropout_rate,
learning_rate=learning_rate)
model.DisplayModel()
model.Train(epochs=epochs)
model.Predict(True)
model.Save()
#model.DisplayDataSample()
else: #CNN
window_size = 16 * prediction_target_days
modelDescription = ticker + '_CNN'
modelDescription += '_epochs' + str(epochs) + '_histwin' + str(
window_size) + '_daysforward' + str(prediction_target_days)
if usePercentages: modelDescription += '_percentages'
#FieldList = None
FieldList = ['High', 'Low', 'Open', 'Close']
model.LoadSource(sourceDF=prices.GetPriceHistory(),
FieldList=FieldList,
window_size=window_size)
model.LoadTarget(targetDF=None,
prediction_target_days=prediction_target_days)
model.MakeBatches(batch_size=64, train_test_split=.93)
model.BuildModel(layer_count=1,
hidden_layer_size=hidden_layer_size,
dropout=dropout,
dropout_rate=dropout_rate,
learning_rate=learning_rate)
model.DisplayModel()
model.Train(epochs=epochs)
model.Predict(True)
model.Save()
if usePercentages:
predDF = model.GetTrainingResults(True, True)
predDF = predDF.loc[:, ['Average', 'Average_Predicted']]
print('Unraveling percentages..')
predDF['Average_Predicted'].fillna(0, inplace=True)
predDF.iloc[0] = prices.CTPFactor['Average']
for i in range(1, predDF.shape[0]):
predDF.iloc[i] = (1 + predDF.iloc[i]) * predDF.iloc[i - 1]
print(predDF)
predDF['PercentageDeviation'] = abs(
(predDF['Average'] - predDF['Average_Predicted']) /
predDF['Average'])
predDF.to_csv(dataFolder + modelDescription + '.csv')
plot.PlotDataFrame(predDF[['Average', 'Average_Predicted']],
modelDescription, 'Date', 'Price', True,
dataFolder + modelDescription)
plot.PlotDataFrameDateRange(
predDF[['Average', 'Average_Predicted']], None, 160,
modelDescription + '_last160ays', 'Date', 'Price',
dataFolder + modelDescription + '_last160Days')
plot.PlotDataFrameDateRange(
predDF[['Average', 'Average_Predicted']], None, 500,
modelDescription + '_last500Days', 'Date', 'Price',
dataFolder + modelDescription + '_last500Days')
else:
model.PredictionResultsSave(modelDescription, True, True)
model.PredictionResultsPlot(modelDescription, True, False)
