basic8020.py

import pandas as pd
import basedf as basedf


def trade8020(close, priorhigh, priorlow, prioropen, priorclose):
    min_perc = 0.20
    max_perc = 0.80
    priordayrange = priorhigh - priorlow

    if priordayrange == 0:
        r = 'notrade'
    else:
        o_perc = (prioropen - priorlow)/priordayrange
        c_perc = (priorclose - priorlow)/priordayrange
    
        if prioropen > priorclose and c_perc < min_perc and o_perc > max_perc \
            and close > priorlow:
            r = 'longwin'
        elif prioropen > priorclose and c_perc < min_perc and \
            o_perc > max_perc and close <= priorlow:
            r = 'longloss'
        elif priorclose > prioropen and c_perc > max_perc and \
            o_perc < min_perc and close < priorhigh:
            r = 'shortwin'
        elif priorclose > prioropen and c_perc > max_perc and \
            o_perc < min_perc and close >= priorhigh:
            r = 'shortloss'
        else:
            r = 'notrade'
    return r


def run8020test(df):

    df['Trade8020'] = df.apply(lambda x: trade8020(x['Close'],
        x['PriorHigh'],x['PriorLow'],x['PriorOpen'],x['PriorClose']),axis=1)

    df.shape
    df.head(20)

    table = pd.pivot_table(df, index=['Trade8020'], aggfunc='count')
    print(table['Close'])


if __name__ == "__main__":
    df = basedf.prepcoredata()
    run8020test(df)