- psl(close, open_=None, length=None, scalar=None, drift=None, offset=None, **kwargs)[source]#
Psychological Line (PSL)
The Psychological Line is an oscillator-type indicator that compares the number of the rising periods to the total number of periods. In other words, it is the percentage of bars that close above the previous bar over a given period.
- Default Inputs:
length=12, scalar=100, drift=1
- IF NOT open:
DIFF = SIGN(close - close[drift])
DIFF = SIGN(close - open)
DIFF.fillna(0) DIFF[DIFF <= 0] = 0
PSL = scalar * SUM(DIFF, length) / length
close (pd.Series): Series of ‘close’s open_ (pd.Series, optional): Series of ‘open’s length (int): It’s period. Default: 12 scalar (float): How much to magnify. Default: 100 drift (int): The difference period. Default: 1 offset (int): How many periods to offset the result. Default: 0
fillna (value, optional): pd.DataFrame.fillna(value) fill_method (value, optional): Type of fill method
pd.Series: New feature generated.