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add show_all flag (default True)

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Dorren Chen
2021-03-13 11:07:12 -05:00
parent 9bd878be0f
commit d51eeada34
1 changed files with 10 additions and 5 deletions
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pandas_ta/momentum/td.py
+10 -5
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@@ -12,17 +12,21 @@ def true_sequence_count(s):
s = s[s.index > index]
return s.count()
def calc_td(close, direction='up'):
def calc_td(close, direction, show_all):
td_bool = close.diff(4) > 0 if direction=='up' else close.diff(4) < 0
td_num = np.where(td_bool, td_bool.rolling(13, min_periods=0).apply(true_sequence_count), 0)
td_num = Series(td_num)
td_num = td_num.mask(~td_num.between(6,9))
if show_all:
td_num = td_num.mask(td_num == 0)
else:
td_num = td_num.mask(~td_num.between(6,9))
return td_num
def td(close, offset=None, **kwargs):
up = calc_td(close, 'up')
down = calc_td(close, 'down')
def td(close, offset=None, show_all=True, **kwargs):
up = calc_td(close, 'up', show_all)
down = calc_td(close, 'down', show_all)
df = DataFrame({'TD_up': up, 'TD_down': down})
# Offset
@@ -53,6 +57,7 @@ Calculation:
Args:
close (pd.Series): Series of 'close's
offset (int): How many periods to offset the result. Default: 0
show_all (bool): default True, show 1 - 13. If set to false, only show 6 - 9
Kwargs:
fillna (value, optional): pd.DataFrame.fillna(value)