def isBullTakeover(quotes: List[Quote]) -> float:
if len(quotes) >= 2 and is_red(quotes[0]) and is_green(quotes[1]) and \
quotes[0].open_price > quotes[1].open_price and body_length(quotes[0]) != 0:
ratio_between_candles = body_length(quotes[1]) / body_length(quotes[0])
if ratio_between_candles > 1.2:
return ratio_between_candles
return 0
def falling_snippet(parameters: Dict):
split_point = parameters[SPLIT_POINT]
quotes = parameters[QUOTES]
growth_to_fall_power = -round(
is_growth_to_fall(quotes[split_point - 2:split_point + 4]), 3)
if growth_to_fall_power == 0:
return None
parameters[CUSTOM_FILE_NAME] = str(
quotes[split_point - NUMBER_OF_ROWS_IN_SNIPPET_FILE].date) + "_" + str(
quotes[split_point].date) + "." + str(growth_to_fall_power)
amplitude_of_fall = quotes[split_point].close_price * (
1 - PERCENT_OF_GROWTH_OR_FALL_AFTER_SNIPPET / 100)
amplitude_of_rollback = quotes[split_point].high_price * (
1 + PERCENT_OF_MAXIMUM_ALLOWED_ROLLBACK / 100)
for pointer in range(split_point + 1,
split_point + PREDICTION_SIZE_IN_BUSINESS_DAYS + 1):
# if graphic goes in the direction where we don't want
if quotes[pointer].high_price > amplitude_of_rollback and is_green(
quotes[pointer]):
parameters[SNIPPET_TYPE] = SnippetTypes.hold
return create_snippet(parameters)
if quotes[pointer].close_price < amplitude_of_fall and is_red(
quotes[pointer]):
parameters[SNIPPET_TYPE] = SnippetTypes.sell
return create_snippet(parameters)
pointer += 1
parameters[SNIPPET_TYPE] = SnippetTypes.hold
return create_snippet(parameters)
def isDojiDragonfly(quotes: List[Quote]) -> float:
if len(quotes) < 3:
return 0
if quotes[1].high_price == body_top and is_red(quotes[0]) and is_green(quotes[2]) and \
quotes[1].low_price < body_bottom(quotes[1]) < min(quotes[0].open_price, quotes[2].close_price) and \
(body_length == 0 or lower_shadow(quotes[1]) / body_length(quotes[1]) > 3):
return confirm_fall_to_growth_trend_reversal(quotes, 1)
return 0
def isDojiGravestone(quotes: List[Quote]) -> float:
if len(quotes) < 3:
return 0
if quotes[1].low_price == body_bottom(quotes[1]) and is_green(quotes[0]) and is_red(quotes[2]) and \
quotes[1].high_price > body_top(quotes[1]) > max(quotes[0].open_price, quotes[2].close_price) and \
(body_length == 0 or upper_shadow(quotes[1]) / body_length(quotes[1]) > 3):
return 1
return 0
def isAbandonedBaby(quotes: List[Quote]) -> float:
if len(quotes) < 3:
return 0
if is_red(quotes[0]) and is_green(quotes[2]) and \
quotes[1].high_price < min(quotes[0].low_price, quotes[2].low_price) and \
(body_length(quotes[1]) == 0 or min(lower_shadow(quotes[1]),
upper_shadow(quotes[1])) / body_length(quotes[1]) > 2):
return 5
return 0
def isDojiMorningStar(quotes: List[Quote]) -> float:
if len(quotes) < 3:
return 0
if is_red(quotes[0]) and is_green(quotes[2]) and \
body_top(quotes[1]) < min(quotes[0].close_price, quotes[2].open_price) and \
(body_length(quotes[1]) == 0 or min(lower_shadow(quotes[1]),
upper_shadow(quotes[1])) / body_length(quotes[1]) > 2):
return 2
return 0
def isHammer(quotes: List[Quote]) -> float:
if len(quotes) < 3:
return 0
if is_red(quotes[0]) and is_green(quotes[2]) and body_length(quotes[1]) != 0 and \
quotes[1].low_price < min(quotes[0].low_price, quotes[2].low_price) and \
(upper_shadow(quotes[1]) == 0 or lower_shadow(quotes[1]) / upper_shadow(quotes[1]) > 3):
ratio_shadow_to_body = lower_shadow(quotes[1]) / body_length(quotes[1])
if ratio_shadow_to_body > 2:
return ratio_shadow_to_body
return 0
def falling_snippet(parameters: Dict):
split_point = parameters[SPLIT_POINT]
quotes = parameters[QUOTES]
amplitude_of_fall = quotes[split_point].close_price * (
1 - PERCENT_OF_GROWTH_OR_FALL_AFTER_SNIPPET / 100)
amplitude_of_rollback = quotes[split_point].high_price * (
1 + PERCENT_OF_MAXIMUM_ALLOWED_ROLLBACK / 100)
for pointer in range(split_point + 1,
split_point + PREDICTION_SIZE_IN_BUSINESS_DAYS + 1):
# if graphic goes in the direction where we don't want
if quotes[pointer].high_price > amplitude_of_rollback and is_green(
quotes[pointer]):
parameters[SNIPPET_TYPE] = SnippetTypes.hold
return create_snippet(parameters)
if quotes[pointer].close_price < amplitude_of_fall and is_red(
quotes[pointer]):
parameters[SNIPPET_TYPE] = SnippetTypes.sell
return create_snippet(parameters)
pointer += 1
parameters[SNIPPET_TYPE] = SnippetTypes.hold
return create_snippet(parameters)
def growing_snippet(parameters: Dict):
split_point = parameters[SPLIT_POINT]
quotes = parameters[QUOTES]
if DecisionMaker.should_buy(parameters[QUOTES][0:split_point]) is None:
return None
amplitude_of_growth = quotes[split_point].close_price * (
1 + PERCENT_OF_GROWTH_OR_FALL_AFTER_SNIPPET / 100)
amplitude_of_rollback = quotes[split_point].low_price * (
1 - PERCENT_OF_MAXIMUM_ALLOWED_ROLLBACK / 100)
for pointer in range(split_point + 1,
split_point + PREDICTION_SIZE_IN_BUSINESS_DAYS + 1):
# if graphic goes in the direction where we don't want
if quotes[pointer].low_price < amplitude_of_rollback and is_red(
quotes[pointer]):
parameters[SNIPPET_TYPE] = SnippetTypes.hold
return create_snippet(parameters)
if quotes[pointer].close_price > amplitude_of_growth and is_green(
quotes[pointer]):
parameters[SNIPPET_TYPE] = SnippetTypes.buy
return create_snippet(parameters)
pointer += 1
parameters[SNIPPET_TYPE] = SnippetTypes.hold
return create_snippet(parameters)